Presentation of media content

ABSTRACT

A media services interface for use in a readable medium playback device enables synchronization of disparate media playback, network directed playback of media, media playback control via displayed html/javascript file, logging of consumer identifier, media identifier, and playback device identifier in a cookie or log file. The media services comprises a command handler, a properties handler, an event generator, a cookie manager, a navigator state module, an identifier engine, an initialization module, and a bookmark manager. The command handler executes commands received from a connected network, a displayed html/javascript file, etc. The properties handler provides information relating to system states in response to queries including the status of any network connections. The event generator generates events in response to predetermined system occurrences. The cookie manager records information for later reading including the tracking of consumer identifier, playback device identifier, and readable medium identifier triples. The navigator state module maintains information regarding the state of the playback device and the interaction with the readable medium. The identifier engine carries out determination of the identity of the readable medium. The initialization module controls system initialization. The bookmark manager generates bookmarks which preserve positions in the playback of the readable medium for later recall. Network sources can provide media content and issue commands which synchronize the playback of both network and readable medium originated content over multiple playback devices through the use of the synchronization abilities of the media services.

The present patent document is a continuation of U.S. patent application Ser. No. 09/935,756, filed Aug. 21, 2001, of Lamkin, et al, entitled PRESENTATION OF MEDIA CONTENT FROM MULTIPLE MEDIA SOURCES, which is a non-provisional of provisional application Ser. No. 60/226758, filed Aug. 21, 2000; and a non-provisional of provisional application Ser. No. 60/246652, filed Nov. 7, 2000; and a non-provisional of provisional application Ser. No. 60/251965, filed Dec. 5, 2000; and a non-provisional of provisional application Ser. No. 60/259075, filed Dec. 29, 2000; and a non-provisional of provisional application Ser. No. 60/302778, filed Jul. 2, 2001; and a continuation-in-part of application Ser. No. 09/644669, filed Aug. 24, 2000; and a continuation-in-part of application Ser. No. 09/649215, filed Aug. 28, 2000, which is a continuation-in-part of application Ser. No. 09/644669, filed Aug. 24, 2000, which is a non-provisional of provisional application Ser. No. 60/220397, filed Jul. 24, 2000; and a continuation-in-part of application Ser. No. 09/295856, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/296202, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/296098, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/09/295688, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/295964, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/295689, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/295826, filed Apr. 21, 1999; and a continuation-in-part of application Ser. No. 09/476190, filed Jan. 3, 2000; and a continuation-in-part of application Ser. No. 09/488345, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/488337, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/488143, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/488613, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/488155, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/489600, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/488614, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/489601, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/489597, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/489596, filed Jan. 20, 2000; and a continuation-in-part of application Ser. No. 09/499247, filed Feb. 7, 2000; and a continuation-in-part of application Ser. No. 09/898479, filed Jul. 2, 2001, which is a non-provisional of provisional patent application Ser. No. 60/216822, filed Jul. 7, 2000; and a continuation-in-part of application Ser. No. 09/912079, filed Jul. 24, 2001, which is a non-provisional of provisional patent application Ser. No. 60/220400, filed Jul. 24, 2000.

All of the above-referenced patent documents are hereby expressly incorporated herein by reference as if set forth in their entirety.

FIELD OF THE INVENTION

The present invention relates to the presentation of multimedia content, and more particularly to the presentation of locally stored media content combined with remote interactively-obtained network media content.

BACKGROUND OF THE INVENTION

In marketing, many things have been long recognized as aiding success, such as increasing customer satisfaction through such devices as providing personalized service, fast service, access to related or updated information, etc. Traditional marketing has made use such things as notice of promotional offers for related products such as providing coupons, etc. Additionally, some studies have shown that simple repeated brand exposure, such as by advertisement, increases recognition and sales.

One of the largest marketing industries today is the entertainment industry and related industries. To date, digital versatile disks (DVDs) are poised to encompass consumer sales of home entertainment, business and home computer industry, and business information market with a single digital format, eventually replacing audio CDs, videotapes, laserdiscs, CD-ROMs, and video game cartridges. To this end, DVD has widespread support from all major electronics companies, all major computer hardware companies, and all major movie and music studios.

Currently, the fastest growing marketing and informational access avenue is the Internet. The share of households with Internet access in the U.S. soared by 58% in two years, rising from 26.2% in December 1998 to 41.5% in August 2000 (Source: Falling Through the Net: Toward Digital Inclusion@ by the National Telecommunications and Information Administration, October 2000).

Some initial efforts have been made to integrate the success of optical disks, such as the DVD, with the speed and accessibility of the Internet. Programs such as music players currently are able to access the internet to obtain artist information, order music, etc. for inserted disks. However, in the DVD-video arena, little has been done to utilize the vast power for up-to-date, new, and promotional information accessibility to further the aims of improving marketability and customer satisfaction.

Accordingly, it is evident that improvements are possible in the way that entertainment, computing, and academic disks have been supported.

SUMMARY OF THE INVENTION

The present invention advantageously addresses the needs mentioned previously as well as other needs by providing an application programming interface that facilitates the access and use of related or updated web content to provide augmented or improved content with playback of DVD content.

In one embodiment, the invention can be characterized as an integrated system for combining web content and disk content comprising: a display; a computing device operably coupled to a removable media, a network and the display, the computing device at least once accessing data on the network, the computing device comprising: a storage device, a browser having a presentation engine displaying content on the display, an application programming interface residing in the storage device, a decoder at least occasionally processing content received from the removable media and producing media content substantially suitable for display on the display, and a navigator coupled to the decoder and the application programming interface, the navigator facilitating user or network-originated control of the playback of the removable media, the computing device receiving network content from the network and combining the network content with the media content, the presentation engine displaying the combined network content and media content on the display.

In another embodiment, the invention can be characterized as a method comprising: a) receiving a removable media; b) checking if said removable media supports media source integration; c) checking if said removable media source is a DVD responsive to said removable media supporting source integration; d) checking whether said device is in a movie mode or a system mode responsive to said removable media being a DVD; e) launching standard playback and thereafter returning to said step (a) responsive to said device being in said movie mode; f) checking if said device has a default player mode of source integration when said device is in said system mode; g) launching standard playback and thereafter returning to said step (a) responsive to said device not having a default player mode of source integration; h) checking if said removable media contains a device-specific executable program when said device having a default player mode of source integration; i) executing said device-specific executable program when said device has said device-specific executable program and thereafter returning to said step (a); j) checking whether said device has a connection to a remote media source; k) launching a default file from said removable media when said device does not have a remote media source connection and thereafter returning to said step (a); I) checking whether said remote media source has content relevant to said removable media; m) displaying said relevant content when said relevant content exists and thereafter returning to said step (a); n) otherwise launching a default file from said removable media and thereafter returning to said step (a); o) returning to said step (f).

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a general example of a display device receiving content from local and offsite sources according to one embodiment;

FIG. 2 shows a general example of a computer receiving content from local and offsite sources according to one embodiment;

FIG. 3 shows a general example of a television set-top box receiving content from local and offsite sources and according to one embodiment;

FIG. 4 shows a diagram showing the interaction between an embedded web browser and a media subsystem according to one embodiment;

FIG. 5 shows an example of media and other content integration according to one embodiment;

FIG. 6 shows a general overview of the interaction of the components of a DVD device according to one embodiment;

FIG. 7 shows one exemplary method for handling disk insertion according to one embodiment resulting in the launching of various contents or the display of a logo depending on the outcome of multiple determinations;

FIG. 8 shows a media disk directory structure according to one embodiment;

FIGS. 9-10 show 2 parts of one exemplary algorithm 900 for handling disk insertion according to one embodiment resulting in the launching of different contents depending on disk determinations;

FIG. 11 shows a general exemplary diagram of synchronous viewing of content according to one embodiment;

FIG. 12 shows a depiction of user interaction using a remote control;

FIG. 13 shows a remote control according to an embodiment of the present invention;

FIG. 14 shows an example of a computer to Internet connection according to one embodiment; and

FIG. 15 shows an example of a bookmark according to one embodiment.

DETAILED DESCRIPTION OF THE DRAWINGS

The following non-patent documents are hereby incorporated by reference as if set forth in their entirety: InterActual API Design Guidelines for Consumer Electronics Manufacturers; InterActual Application programming interface (API) Specification (also called InterActual API Specification)

An application programming interface (API) of the present embodiment is based on a scripting model, leveraging, e.g., industry standard HTML and JavaScript standards for integrating locally stored media content and remote interactively-obtained network media content, e.g., video content on a web page. The application programming interface (API) enables embedding, e.g., video content in web pages and can display the video in full screen or sub window format. Commands can be executed to control the playback, search, and overall navigation through the embedded content.

Additionally, the application programming interface can be queried and/or set by the use of properties. Effects may be applied to playback. Video sequences have an associated time element during playback, and events are triggered to provide notification of various playback conditions, such as time changes, title changes, and user operation (UOP) changes. Events can be used for use in scripting and synchronizing video with HTML or read only memory (ROM)-based content.

A goal of the application programming interface (API) is to enable content developers to create products that seamlessly combine, e.g., the Internet with content from other digital versatile disk-read only memory (DVD-ROM), digital versatile disk-audio (DVD-Audio), and compact disc-audio (CD-Audio). Hereinafter, by the use of DVD-Video, it is to be understood that all three of these disk/disc media are included. The combination of the Internet with DVD-Video creates a richer, more interactive, and personalized entertainment experience for users.

Further, the application programming interface (API) provides a common programming interface allowing playback of this combined content on multiple playback platforms simultaneously. While the application programming interface (API) allows customized content and functions tailored for specific platforms, the primary benefit of the application programming interface (API) is that content developers can create content once for multi-platform playback, without the need of becoming an expert programmer on specific platforms, such as Windows, Macintosh, and other platforms. The document InterActual Usage Guide for Developers (hereby incorporated by reference) describes this in more detail for DVD content developers.

Internet connectivity is not a requirement for the use of the application programming interface (API). Stand-alone systems with web browser functionality are all that is required. In addition, compact disc-digital audio (CD-DA) can also be enhanced by use of the application programming interface (API). This is also described in the document InterActual Usage Guide for Developers (hereby incorporated by reference).

Personal video recorders (PVRs), such as the TiVo, RePlay, and digital versatile disk-recordable (DVD-R) devices, enable the ability to purchase video or audio products by downloading them from a satellite or other high-bandwidth system when implemented with the present invention. When so downloaded, the video or audio can be stored to a local disk system or burned onto a DVD-R.

The application programming interface (API) provides a basic set of guidelines for the production of internet-connected DVDs and for the playback of these enhanced DVDs on a range of computer, set-top platforms, and players. Based on the industry standard publishing format hypertext markup language (HTML) and JavaScript, the application programming interface (API) provides a way to easily combine DVD-Video, DVD-Audio, and CD-Audio with and within HTML pages, whereby HTML pages can control the media's playback. The application programming interface (API) provides a foundation for bringing content developers, consumer electronics manufacturers, browser manufacturers, and semiconductor manufacturers together to provide common development and playback platforms for enhanced DVD content.

Regarding FIG. 1, shown is a general example of a display device receiving content from local and offsite sources according to one embodiment.

Shown are a display device (102), a local content source (104), and an offsite content source (106).

The display device (102) is coupled to the local content source (104) as shown by a bi-directional arrow. The display device (102) is coupled to the offsite content source (106) as shown by a bi-directional arrow.

In operation, the display device (102) displays video and/or hypertext markup language (HTML) documents to a user. In an alternative embodiment, the display device (102) can be audio only. Display device (102) can be any device capable of displaying an external video feed or playing an external audio feed such as, but not limited to, a computer, a set top box, gaming platforms, or a player. The display device (102) receives content for display from either the local content source (104) or the offsite content source (106). The local content source (104), in one embodiment, can be any device capable of playing any media disk including, but not limited to, digital versatile disks (DVDs), digital versatile disk read only memories (DVD-ROMs), compact discs (CDs), compact disc-digital audios (CD-DAs), optical digital versatile disks (optical DVDs), laser disks, DATAPLAY (TM), streaming media, PVM (Power to Communicate), etc. The offsite content source (106), in one embodiment, can be any device capable of supplying web content or HTML-encoded content such as, but not limited to, a network-connected server or any source on the Internet.

FIG. 2 shows a general example of a computer receiving content from local and offsite sources according to one embodiment.

Shown are a local content source (104), an offsite content source (106), a computer (202), a microprocessor (204), and a memory (206).

The local content source (104) is coupled to the computer (202). The offsite content source (106) is coupled to the computer (202). The computer (202) includes the microprocessor (204) and the memory (206).

In operation, computer (202) is any computer able to play/display both video or audio provided by the local content source (104) and/or web or HTML content as provided by the offsite content source (106). Additionally, computer (202) can display both video and web/HTML content synchronously according to one embodiment of the present invention. Microprocessor (204) and memory (206) are used by computer (202) in executing software of the present invention.

FIG. 3 shows an example of a general system 300 comprising a television set-top box receiving content from local and offsite sources and according to one embodiment.

Shown are a local content source (104), an offsite content source (106), a set-top box (302), a microprocessor (304), a memory (306), and a television (308).

In operation, set-top box (302) enables selection between video or audio provided by the local content source (104) and web or HTML content as provided by the offsite content source (106). The set-top box (302) provides selected content to television (308) for display. Additionally, set-top box (302) can combine both video and web/HTML content synchronously according to one embodiment of the present invention and provide the same to television (308) for display. Microprocessor (304) and memory (306) are used by computer (202) in executing software of the present invention.

Referring to FIG. 4, shown is a diagram showing the interaction between an embedded web browser and a media subsystem according to one embodiment.

Shown are a hardware platform (402), an embedded web browser (410), and a media subsystem (420).

The hardware platform (402) executes both the embedded web browser (410) and the media subsystem (420). The embedded web browser (410) is coupled to the media subsystem (424). The media subsystem (420) is a superset of media services including DVD navigator for DVD disc. The media services is discussed in greater detail in relation to FIG. 6 later herein. When the media is not disc oriented, the media navigation is carried out by another component.

In operation, the hardware platform (402) has microprocessor or other processing circuitry (as shown in FIGS. 2-3) executing both the embedded web browser (410) and the media subsystem (420). The hardware platform (402) can be any device suitable for the present invention such as, but not limited to, television set-top boxes, DVD players, computers, etc.

The application programming interface (API) provides a common programming interface for hypertext markup language (HTML) and ECMAScript (a standardized script based on JavaScript and the like) for ensuring playback of enhanced content on multiple playback platforms. Internet connectivity is not required for the use of the application programming interface (API) when content originates from disk ROM.

The application programming interface (API) facilitates the playback of audio and/or video embedded within a web page. The application programming interface (API) can play back full-screen video or video within a web page window (sub window). Audio and/or video is embedded within a HTML-encoded page by use of an appropriate tag such as, but not limited to, the object tag (for the Microsoft Windows operating system) and the embed tag (for the Apple Macintosh Liberate operating system). TABLE 4 Examples of embedding DVD-Video in HTML Operating System Example Microsoft <OBJECT classid=clsid: Windows E358A3BE-6E9A-4BD4-93FB-F95FAA72FC01 height=140 id=InterActual style=“HEIGHT: 189px; WIDTH: 320px” width=160> </OBJECT> Apple <embed TYPE=‘application/x-itx-plugin’ HIDDEN=‘true’ Macintosh name=‘InterActual’ ALIGN=center Liberate HEIGHT=100 WIDTH=200 CODEBASE=‘ITXClasses.jar’ TitleSleep=10000 ChapterSleep=10000 TimeSleep=10000 PropertySleep=10000 MAYSCRIPT> </embed> Linux TBD Others TBD

Optionally, on players that support the ATVEF standard, the object could be referenced in the following manner: <object data=“tv:” height=x width=x>

After the DVD-Video object is embedded in the web page, it can be accessed using any style sheet, link, or scripting language. Values for the ID string must begin with a letter (A-Z or a-z) and may be followed by any number of letters, digits, hyphens, and periods up to a maximum of 48.

Unlike computers, set-top boxes do not generally have a full-featured operating system and browser. Therefore, the capabilities within the browser are often more restricted. For embedding DVD-Video within these platforms using the application programming interface (API), the “InterActual” indentifier (ID) must be integrated within the embedded browser as any other tag structure. The ID allows the API to be associated with the HTML object. With this approach, any embedded browser that encounters the “InterActual” tag would automatically associate this identifier with the application programming interface (API).

The embedding of the video object assumes a certain level of Window handling:

-   -   Toggling between full screen presentation of HTML and full         screen video     -   Displaying DVD-Video within an HTML frame/window     -   Dynamic resizing of the video window size         -   Note: The application programming interface (API) will play             video full screen down to a 4:1 downscale (180×120 for NTSC             and 180×144 for PAL).

The application programming interface (API) provides interaction with hardware platform (402) by means of commands (or methods), properties, and events. Commands (also called methods) are executed to control the playback of, search of, and navigation through video and/or audio content. The environment can be queried to ascertain the status of various properties. Events are triggered by the occurrence of various operating or playback conditions and serve to provide notification of these playback conditions. Events are essential for scripting and the simultaneous presentation of the media content (audio and/or video) with other web assets (such as text, graphics, etc.). Thus, properties are passive (provided in response to queries) and events are active (provided without queries).

Commands

Commands such as InterActual.PlayTitle, allows the HTML content to control playback of the media. Commands are parsed by the browser presentation engine (described later in greater detail in reference to FIG. 6) and then passed to the DVD navigator (described later in greater detail in reference to FIG. 6) to effect playback.

Properties

Properties allow the HTML content to query for state information of the DVD navigator. An example includes InterActual.TitleNumber. Properties are parsed by the presentation engine and passed thereafter to the DVD navigator. In response, the DVD navigator interprets the query and returns the requested information.

Events

Events allow the HTML content to receive state information from the DVD navigator. An example of an event notification would be InterActual.TitleEvent. Events are propagated from the DVD navigator to the browser presentation engine whenever the requested state changers. The HTML content can subscribe to events using any of the event handlers as described in the application programming interface (API) specification.

FIG. 5 shows an example of media and other content integration according to one embodiment.

Shown are a display device (502), a screen (504), a content area (505), and a sub window (508).

The display device (502) contains the screen (504) able to display graphics and text. The content area (506) contains the sub window (508) (also referred to as a video window or alternate frame).

An important aspect of this embodiment is that audio and/or video can be integrated with other content such as text and/or graphics described in web compatible format (although the source need not be the Internet, but can be any source such as a disk or server able to deliver this content).

As an example, the sub window (508) displays movie content, such as the movie 72, and the content area (506) displays text and/or graphics (provided by HTML coding) which is topically related to the part of the movie playing in the sub window (508). When the user/viewer interacts with the content in the content area (506), such as by clicking on a displayed button, effects will be reflected in the media sub window (508). As an example, clicking on buttons or hypertext links indicating sections or particular points in the movie results in the video playback jumping to the selected point. Additionally, the media displayed in sub window (508) can result in changes in the content area (506). As an example, progression of the movie to a new scene results in a new text display giving information about the scene.

Concurrent Browsing and Video Playback

A primary feature of the application programming interface (API) is the ability to view HTML pages while playing video and/or audio content. The concurrent playback of browser and video places additional requirements on the processing power and memory of the underlying hardware. Each DVD semiconductor solution should be designed to perform both of these functions simultaneously. A required feature of the application programming interface (API) is the ability to display downscaled video within a frame of a web page. Additionally, video upscale is another feature of an embodiment as HTML content is already being designed with the assumption that this capability will be available in future devices.

Storyboard with Scrolling Display

As example of one embodiment is a movie authored with the entire screenplay provided on the DVD disk in HTML format. When a viewer clicks on any screen visually represented in HTML, the system links the viewer to that scene (by use of the command InterActual.SearchTime to go to the specific location within a title) within the DVD-Video. Besides being capable of a finer granularity than the normal chapter navigation provided on DVD-Video, the HTML-based script can contain other media such as a picture (by use of the command “InterActual.DisplayImage”) or special audio (by use of the command “InterActual.SelectAudio”) and/or live links for other information. Further, the text of the screenplay in HTML could automatically Ascroll® with the DVD-Video to give the appearance of being synchronized with the DVD-Video. Although many of these types of features can be authored in DVD-Video (except, of course, live web links and synchronized scrolling), HTML authoring is much more efficient, immediate, and widely known.

FIG. 6 shows a general overview of the interaction of the components of a DVD device according to one embodiment.

Shown are a DVD device (602), an embedded web browser (410), a presentation engine (612), a web browser application programming interface for media services (614), DVD hardware (620), a DVD navigator (622), a media services (628), a DVD decoder (626), and an internet (630).

The DVD device (602) includes both the embedded web browser (410) and the DVD hardware (620). The embedded web browser (410) includes the presentation engine (612). The embedded web browser (410) is coupled to the web browser application programming interface for media services (614) which, in turn, is coupled to the DVD hardware (620). The DVD hardware (620) includes the DVD navigator (622) and the DVD decoder (626). The DVD navigator (622) includes the media services (628). The media services (628) is coupled to the DVD decoder (626). The DVD device (602) is coupled to the internet (630). The media services (628) corresponds to the media subsystem (628) but has a more specific implementation. The media subsystem (628) is a superset of the media services (628) and includes DVD navigator for DVD disc.

With the DVD device (602), the user is able to interact with an enhanced DVD on a television in the same fashion as can be experienced on a computer. The display area of a television can show video and HTML content concurrently. This is accomplished by the embedded web browser (410) in the DVD player. As discussed herein in reference to FIG. 4, the HTML content can control the playback of the video through embedded application programming interface (API) commands.

The embedded web browser (410) is responsible for displaying the HTML content authored on InterActual-compatible disks, stored locally on device (602), or served from a remote server location. The embedded web browser (410) also supports concurrent playback of video and audio while presenting the HTML page.

Presentation Engine

The presentation engine (612) of the browser must provide for the embedding of video within web pages. Embedding video within web pages defines the location where the video is played. This location information is then parsed by the presentation engine and passed to the underlying video rendering engine.

The presentation engine (612) of the embedded web browser (410) parses the HTML instructions for controlling the media playback, generates any graphic portions of the display, positions a video window when it exists, and also interfaces directly with the underlying DVD Navigator. InterActual-specific instructions are interpreted by the presentation engine (612) and passed to a DVD abstraction layer, which can be part of the embedded browser or developed by the DVD navigator manufacturer. This layer serves as an abstraction that makes it possible to map the browser into a DVD player-specific DVD navigator developed either by the semiconductor manufacturer or the player manufacturer. Of course, the DVD Navigator interfaces with the underlying video and audio decoders.

DVD Navigator Abstraction Layer

The web browser application programming interface for media services (614) (or DVD navigator abstraction layer (614)) is a very thin interface layer between the presentation engine (612) and the media services (628).

The DVD Navigator abstraction layer (614) may be developed by the player manufacturer or the semiconductor manufacturer. To support a flexible and portable solution, the DVD navigator abstraction layer (614) is recommended to reside in between the browser (410) and the DVD navigator (622). Abstracting the communication between the browser (410) and navigator (622) offers a more robust and portable design, so that either the browser or the navigator can be changed in future player designs.

The DVD navigator (622) controls the decoding and playback of media in the drive.

The media services (628) serves as a middleware layer between web browser application programming interface for media services (614) and the DVD navigator (622). The media services (628) facilitates content running in the embedded web browser (410) to control the DVD navigator (622). The media services (628) allows the DVD navigator (622) to work with any web browser compliant with the present embodiment.

The DVD decoder (626) interfaces between the DVD media interface hardware contained in the DVD hardware (620) and the DVD navigator (622).

The Internet (630) is shown as a specific example of the offsite content source (106) shown in FIGS. 1-3.

Referring to FIG. 7, shown are the details for the web browser application programming interface for media services (414) of FIG. 4.

Shown are an embedded web browser (410), a command handler (with command API) (702), a properties handler (with properties API) (704), an event generator (with event API) (706), a cookie manager (with cookie API) (708), an identifier engine (710), an initialization module (712), a navigator state module (714), a bookmark manager (716), a system resources (720), a system timer (722), a system monitor (724), a system initialization (726) a DVD/CD navigator (422), a user remote control (730), a front panel display module (732), a CD decoder (734), a DVD decoder (426), an I/O controller (736), a disk (738), a HTM/JavaScript content (740), and an InterActual API (742).

The embedded web browser (410) is coupled to the command handler (which has an associated command API) (702) as shown by a bi-directional arrow. The embedded web browser (410) is coupled separately to the properties handler (which has an associated properties API) (704), the event generator (which has an associated event API) (706), and the cookie manager (which has an associated cookie API) (708), all three connections shown by an arrow pointing towards the embedded web browser (410).

The command handler (702) is coupled to the bookmark manager (716) shown by a bidirectional arrow. The command handler (702) is coupled to the DVD/CD navigator (422) shown by a bi-directional arrow. The command handler (702) is coupled to the navigator state module (714) shown by a bi-directional arrow. The command handler (702) is coupled to the system resources (720) by an arrow pointing to the system resources (720).

The properties handler (704) is coupled separately to the bookmark manager (716) and the identifier engine (710), both shown by an arrow pointing to the properties handler (704). The properties handler (704) is coupled the event generator (706) by a bi-directional arrow.

The event generator (706) is coupled to the navigator state module (714) shown by a bi-directional arrow. The event generator (706) is coupled to the system timer (722) shown by an arrow pointing to the event generator (706). The event generator (706) is coupled to the cookie manager (708) by an arrow pointing to the cookie manager (708).

The cookie manager (708) is coupled to the identifier engine (710) shown by a bi-directional arrow.

The identifier engine (710) is coupled to the I/O controller (736) by an arrow pointing towards the identifier engine (710) and to the navigator state module (714) by a bi-directional arrow.

The initialization module (712) is coupled to the system initialization (726) by an arrow pointing towards the initialization module (712). The initialization module (712) is coupled to the navigator state module (714) by an arrow pointing to the navigator state module (714).

The navigator state module (714) is also coupled separately to the bookmark manager (716) and the DVD/CD navigator (422) by bi-directional arrows.

The DVD/CD navigator (422) is coupled to the user remote control (730) by an arrow pointing to the DVD/CD navigator (422). The DVD/CD navigator (422) is coupled to the front panel display module (732) by an arrow pointing to the front panel display module (732). The DVD/CD navigator (422) is coupled to the DVD decoder (426) by a bidirectional arrow.

The I/O controller (736) is coupled separately to both the DVD decoder (426) and the CD decoder (734) by arrows pointing away from the I/O controller (736). The I/O controller (736) is coupled to the disk (738) by an arrow pointing to the disk (738).

The disk (738) is coupled to the HTML/JavaScript content (740) by an arrow pointing to the HTML/JavaScript content (740).

The HTML/JavaScript content (740) is coupled to the Application programming interface (API) (742) by an arrow pointing to the Application programming interface (API) (742).

In operation, the embedded web browser (410) receives HTML/JavaScript content from disk (738) which is displayed by presentation engine (612). The embedded web browser (410) originates commands (as a result of user interaction which can be via the remote in set-top systems, the keyboard or mouse in computing systems, the game interface in gaming systems, etc.), which are sent to the command handler (702) by way of the command API. The embedded web browser (410) also receives commands from the command handler (702) by way of the command API. An example of such a command is InterActual.FullScreen(w). The embedded web browser (410) also receives cookies from the cookie manager (708) via the cookie API, generally in response to the accessing of an Internet website. The embedded web browser (410) also receives events (notifications) each of which is a notification that a respective defined event (generally related to media playback) has occurred. These events are generated by the event generator (706) and sent via the event API. The embedded web browser (410) also queries properties from the properties handler (704) via the properties API. Properties are received in response to inquiries generated by the embedded web browser (410).

The command handler (702) controls the DVD/CD navigator (422) including starting and stopping playback, changing audio streams, and displaying sub-pictures from JavaScript, among many things. The command handler (702) provides live web content for non-InterActive disks when an active Internet connection is present through such commands as InterActual.NetConnect( ) and InterActual.NetDisconnect( ). The command handler (702) commands the bookmark manager (716) through such commands as InterActual.GotoBookmark( ) and InterActual.SaveBookmark( ). The command handler (702) also interacts with the navigator state module (714) generally regarding user interaction. The Navigator state module (714) keeps the current state of the system and receives it directly from the decoder (or maps directly into it). When the bookmark manager (716) is going to save a bookmark and needs to know the current title, the bookmark manager (716) receives it from the navigator state module (714) and places it in a bookmark and returns it to the command handler to allow it to provide a return value to the InterActual.SaveBookmark command.

The properties handler (704) provides the embedded web browser (410) with the ability to interrogate the navigator state module (714) for the DVD/CD navigator (422) state which includes the properties (also referred to as attributes) of the elapsed time of the current title, the disk type, and the disk region, among others. The properties handler (704) maintains knowledge of system attributes. The Event Generator monitors these attributes and triggers and event when one is changed.

The event generator (706) provides notification to the DVD/CD navigator (422) of events such as a change of title or chapter with web content (based on DVD time codes and the system time from the system timer (722)). The event generator (706) notifies the properties handler (704) of event triggerings which are of interest to the properties handler (704). The event generator (706) also provides events to the cookie manager (708) such as relate to the accessing of web pages, disk insertion, and disk ejection events.

The cookie manager (708) interacts with the identifier engine (710) to provide the ability to save information regarding the disk, platform, current user, and the application programming interface (API) version in local storage.

The identifier engine (710) provides the ability to generate a unique identifier for the media which enables the DVD ROM content (HTML and JavaScript from the disk) to carry out platform validation to ensure a certified device is present. The identifier engine (710) provides the ability to serialize each disk by reading and processing the information coded in the burst code area (BCA) of the disk. The BCA is read by the identifier engine (710) and stored in the navigator state module (714). Hence commands such as InterActual.GetBCAField( ) can get the BCA information from the navigator state module (714) after insertion of a disc. This BCA information provides the ability to uniquely identify each disk by serial number. Conditional access to content, usage tracking, and other marketing techniques are implemented thereby. The identifier engine (710) gets the BCA information for the serial identifier (SerialID), hashes the video .IFO file to identify the title (called the MediaID), and then reads the ROM information to establish a data identifier (DataID) for the HTML/JavaScript data on the disc. The identifier engine (710) provides this information to the navigator state module (714) which stores this information and provides it to whichever of the command handler (702), properties handler (704), or event generator (706) needs it. The identifier engine (710) interacts with the navigator state module. The identifier engine (710) receives the BCA information (read differently than files) from the I/O controller (736). The identifier engine (710) interacts with the cookie manager (708) to place disc related information read from the BCA as discussed previously herein into the InterActual System cookie.

The initialization module (712) provides the ability to establish the DVD/CD navigator environment. The initialization module (712) allows the internal states and the State Modules (i.e. the navigator state module (714)) to be initialized. This initialization also includes reading the current disc in the drive and initializing a system cookie. It is noted that the embedded web browser (410) interfaces which allow registering a callback for the event handler are established at power-up as well.

The navigator state module (714) provides the ability to coordinate user interaction and DVD behavior with front panel controls and/or a remote control. In one embodiment, arbitration of control happens in the navigator (422) itself between the remote and front panel controls. DVD/CD navigator (722) playback is initiated by the navigator state module (714) in response to input from the initialization module (712). The navigator state module (714) receives locations of book marked points in the video playback from the bookmark manager (716) and controls the DVD/CD navigator (422) accordingly.

The bookmark manager (716) provides the ability for the JavaScript content to mark spots in video playback, and to return later to the same spot along with the saved parameters which include angle, sub-picture, audio language, and so forth. The bookmark manager (716) provides the ability to use video bookmarks in conjunction with web bookmarks. As an example, a video bookmark is set, a web session is launched going to a preset web book marked source to retrieve video-related information, then later a return to the video at the book marked spot occurs.

The system timer (722) provides time stamps to the event generator (706) for use in determining events for synchronization or controlled playback.

The system monitor (724) interacts with the properties handler (704). In one embodiment, the system generates a 900 millisecond timer tick as an event which the HTML/JavaScript uses in updating the appropriate time displays as is needed. For systems that do not have a DVD Navigator that creates events the timer is used to poll the property values every 900 milliseconds and compares the poll results with a previous result. If the result changes then an event is generated to the HTML/JavaScript.

The system initialization (726) provides initialization control whenever the system is turned on or reset.

The DVD decoder (427) generally receives the media stream from the I/O controller (736) and decodes the media stream into video and audio signals for output. The DVD decoder (426) receives control from DVD/CD navigator (422).

The CD-DA decoder (734) receives a media stream from I/O controller (736) and decodes it into audio which it provides as output.

The I/O controller (736) interfaces with disk (738) and controls its physical movement, playback, and provides the raw output to the appropriate decoder. The I/O controller (736) also provides disk state information to identifier engine (710).

The disk (738) can be any media disk such as, but not limited to, DVD-ROM, DVD-Audio, DVD-Video, CD-ROM, CD-Audio.

Referring to FIG. 8, shown is a media disk directory structure according to one embodiment.

Shown are a disk (802), a /ROOT directory (804), a /COMMON directory (806), a /MAC directory (808), a/WIN directory (810), a/NUON directory (812), and a/SONY directory (814).

The disk (802) includes each of the directories listed: the /ROOT directory (804), the /COMMON directory (806), the /MAC directory (808), the /WIN directory (810), the /NUON directory (812), and the /SONY directory (814).

In one embodiment, the application programming interface (API) uses the file structure depicted in FIG. 8 to access platform-specific binaries. Platforms for which directories are defined include the /MAC (Macintosh operating system), /NUON (VM labs, NUON technology), /SONY (Sony playstation), /WIN (Microsoft Windows operating systems). Other directories are allowed and can be used when desired, such as /LINUX (for the LINUX operating system), /NINTENDO (Nintendo Dolphin), /SEGA (Sega Dreamcast), and /XBOX (Microsoft X-Box).

The directory structure allows for proprietary executable binary files for each platform. The platform-specific directory structure and its associated set of binaries enable any platform to run executables specifically designed for that platform. This capability, in essence, allows the platform-specific binaries to override the general purpose content, or override the standard browser mechanism. While actual ROM content may reside in a platform directory, in one embodiment, all ROM content resides in the /COMMON directory (806) when possible. The /COMMON directory (806) can support any number of subdirectories including platform-specific directories.

The /COMMON directory (806) and platform-specific directories are standardized, however, each platform developer is free to create their own subdirectory structure under their reserved platform-specific directory. As example, Sony may create PS2 and PS3 subdirectories under the /SONY directory (814).

The /COMMON directory (806) stores the actual ROM content (as opposed to platform-specific binaries). It is recommended that all ROM content, including platform-specific ROM content, reside in this directory as this facilitates an intuitive content development approach and provides an easy way for JavaScript to be used to detect platforms and render the appropriate HTML pages tailored to specific platforms when required.

Even if platform-specific binaries are included on the disk, the general purpose content can still be called. In one embodiment, a DVD utilizes the directory structure by placing the Windows version of software in the /WIN directory, the Macintosh version of PCFriendly in the /MAC directory (808), and so forth. Upon insertion of the disk, whichever platform the disk has been inserted into will execute the appropriate binaries (found in that platform's directory and autorun), and these binaries thereafter load the INDEX.HTM file located in the /COMMON directory (806), which is the starting point for any general-purpose InterActual-compatible disk. The meta-data tag in the head section of the INDEX.HTM file, in one embodiment, contains the Application programming interface (API) version information. The INDEX.HTM file serves as a background container web page during standard playback that allows JavaScript event handlers to be loaded and activated to handle button events during playback. JavaScript can be used to detect platforms and render the appropriate HTML pages customized for those platforms.

The specifications for DVD-video and DVD-audio require that each disk contain specific directories and files. As example, DVD-video files are contained in a directory named VIDEO_TS and DVD-audio files are contained in a directory named AUDIO_TS. There is no such requirement for DVD-ROM, so developers can arrange files in any desired manner.

Files stored for use with InterActual-compatible disks can be in any DVD disc directory. In the case where no platform-specific executable file exists, there must be a method which allows the browser and/or playback engine to identify the initial HTML file.

During disk creation, DVD-video zone files must be placed physically at the beginning of the disk, contiguously, in the order specified by the DVD-video specification. Likewise, DVD-audio zone files must follow the DVD-video files in contiguous order.

In one embodiment, the VIDEO_TS and AUDIO_TS directories are the first entries in the directory descriptor. In one embodiment, the ROM zone files are placed in subdirectories rather than the /ROOT directory.

The placement of files on a dual-layer disk (DVD-9, DVD-14, or DVD-18) is generally independent of the layer details. DVD-video and DVD-audio files must begin on layer 0. ROM zone files are placed at the end, beginning on whichever layer the DVD-video (or DVD-audio) files end on, and can cross the layer boundary if needed.

DVD authoring systems and tools support different naming capabilities such as UDF, ISO-9660, ISO-9660 with Joliet extensions, Macintosh file names, Macintosh resources, hybrid disks, etc. Some authoring systems force a certain character capitalization (such as all capitals).

The disk insertion flow of FIG. 8 is commonly described in terms of phases.

The first phase is InterActual disk detection where the disk is checked to determine if it has InterActual content. This is done by seeking the INDEX.HTM file in the /COMMON directory on the disk. If the INDEX.HTM file exists, then the DVD is compatible with the present embodiment, otherwise, it is not.

The second phase is disk type detection where the disk is checked to determine if it is a DVD-Video, DVD-Audio, or CD-DA disk.

The third phase is player mode detection where the device is checked to determine the default playback mode for the system. This is done by reading the player mode by the properties query InterActual.PlayerMode. When the device is configured for play mode, content in accordance with the present embodiment, in one embodiment, is bypassed.

If the default playback mode for the device is “InterActual” mode, then content in accordance with the present embodiment is launched beginning with /COMMON/INDEX.HTM. The content itself can be updated dynamically if there is an active Internet connection. When there is no active Internet connection, the device will render the content from the disk ROM.

For disks not in accordance with the present embodiment in players with a default playback mode of “InterActual,” the default content homepage (CONNECT.HTM) is rendered and an Internet connection is attempted to potentially provide web content.

The fourth phase is platform-specific file detection where directories on the disk are checked to determine if any platform-specific files are located. This is done by searching for the appropriate file structures for the device.

The fifth phase is internet connection determination where the device is checked to see whether an Internet connection is active or possible. The system can access and updated content files for the current title of disks in accordance with the present embodiment. For non-enhanced titles, the system will look online to see if there is any content available for the current title. If there is such content, the system can offer the same interactive experience as a title in accordance with the present embodiment affords.

When the device is in player mode play, a disk in accordance with the present embodiment can display a logo to signify that there is content in accordance with the present embodiment available from the disk ROM.

Referring to FIGS. 9, shown is part 1/2 of one exemplary algorithm 900 for handling disk insertion according to one embodiment resulting in the launching of different contents depending on disk determinations.

Algorithm 900 begins when a user inserts a media disk into a device at “insert disk” block (902) and determines if the inserted disk is a DVD or music CD in accordance with the present embodiment block (904).

When the determination (block 904) is that the inserted disk is not a disk in accordance with the present embodiment, the algorithm (900) continues through connector A (906) to the corresponding connector A in FIG. 10.

When the determination (block 904) is that the inserted disk is a disk in accordance with the present embodiment, the determination is next made whether the disk is a DVD (block 908).

If the result of the determination of block 908 is that the disk is a DVD, a check is made whether the author mode is movie mode or system mode (block 910). If the author mode is movie mode, standard DVD playback is initiated (block 914). If the author mode is system mode, the determination is made whether the default player mode is “InterActual” (block 912). If it is not, the algorithm (900) launches standard DVD playback (block 914). If it is, the determination is made whether platform specific binaries exist for the current platform (block 916), and if so, platform specific binaries are launched (block 918). If no platform-specific binaries are found, the determination is made whether there is an active Internet connection (block 920), and if not, the file INDEX.HTM is launched from the DVD (block 922). If there is an active Internet connection, a check is made for web content for the current title (block 924), and if there is content for the current title it is displayed (block 926).

If the result of the decision at block 908 is that the disk is not a DVD, the determination is next made whether the default player mode is “InterActual” (block 930) and if not, CD standard playback is launched (block 932). If the default player mode is “InterActual,” a check is made for any platform-specific binaries (block 934) and if any are present, the platform-specific binaries are launched (block 936). If there are no platform-specific binaries, a check is made whether there is an active Internet connection (block 938) and if not, INDEX.HTML is launched from the CD-ROM (block 940). If there is an active Internet connection, a check is made for web content for the current title, and if there is any, it is displayed (block 944). If there is no web content for the current title, INDEX.HTML is launched from the CD-ROM (block 940).

Identifying InterActual-Compatible Discs

A disc in accordance with the present embodiment is detected by checking for the existence of the /COMMON/INDEX.HTM file. The application programming interface (API) version information can be found in the meta-data area of the HTML file.

Referring to FIG. 10, shown is part 2/2 of the exemplary algorithm 900 for handling disk insertion according to one embodiment resulting in the launching of different contents depending on disk determinations.

Algorithm 900 continues from connector A (connector 906) in FIG. 9 and begins at connector A (connector 1002) in FIG. 10. A determination is made whether the disk is a DVD (block 1004) and if the disk is a DVD, a check is made whether the default player mode is InterActual (block 1006). If the default mode is not “InterActual,” standard DVD playback is launched (block 1008). If the default playback mode is “InterActual,” then DEFAULT.HTM is launched from memory (block 1014).

If the disk is determined to not be a DVD (block 1004), a check is made whether the default player mode is “InterActual” (block 1010) and if it is not, standard playback is launched (block 1012). If the default player mode is “InterActual” (block 1010), DEFAULT.HTM is launched from memory (block 1014). After launching DEFAULT.HTM, a check is made whether an active Internet connection exists (block 1016) and if not, standard playback is launched (block 1018). If an active Internet connection exists, a check is made for online content for the current title (block 1020). If no online content is found for the current title, standard playback is initiated (block 1018). If online content for the current title is found, the online content found is displayed (block 1022).

FIG. 11 shows a general exemplary diagram of synchronous viewing of content according to one embodiment.

Shown are a server (1102), an Internet (1104), an InterActive device (1106), and an InterActive device 2 (1108).

The server (1102) is coupled to the Internet (1104) shown by a bi-directional arrow. The Internet (1104) is coupled separately to both the interactive device (1106) and the interactive device 2 (1108) shown by bi-directional arrows.

DVDs can be used for multiple user synchronous use. Generally, this is done by having a prearranged time for an event (such information could be programmed on the disk or provided to users from online content accessed via the disk) at which time interested users connect to a prearranged website by use of the appropriate disk The network site can control all connected devices by sending commands such as play, pause, fast forward, etc. By this manner, content resident on the disks as well as live web-originated content can be synchronously interwoven for any number of connected users simultaneously. With the server being coupled to the interactive devices the server can send commands to these devices for remotely controlling content stored on local interactive devices connected to a network system, such as the Internet. First, the interactive devices begin with the same interactive content, such as a DVD-Video disk. The interactive devices and a server are adapted to be connected to a network. In operation, information is transmitted from the server to the interactive devices that begin playback of the interactive content utilizing the network. Each interactive device receives the command at the same time and thus the commands and therefore the content are synchronized at start of playback. If the interactive devices support different commands such as a playing at a given time or only playing at a given chapter the server must utilize the supported features for the interactive device and send out only the supported commands to the interactive devices. This allows for the simultaneous playback of the event on each of the client apparatuses. Late synchronization can be achieved by a similar method by sending a command from the server to the interactive devices of the current time position the DVD-Video is playing. For those interactive devices that only support chapter commands the server must wait until the next chapter change to send the command to the interactive device to synchronize with the other interactive devices currently viewing the DVD-Video. Furthermore, This allows content such as DVD Video content to be locked so that play can only be accomplished through verification of interactive devices identity and also allows augmentation and supplementation of the content provided by the video from a remote server. Upon verification of a interactive device's credentials, the locally stored content can be supplemented with additional content delivered over the network system. This is achieved by using precise command sequences from the server to the interactive devices that unlock the local DVD-Video for example.

Network Controlled Synchronization

DVDs can be used for multiple user synchronous use. Generally, this is done by having a prearranged time for an event (such information could be programmed on the disk or provided to users from online content accessed via the disk) at which time interested users connect to a prearranged website by use of the appropriate disk. The network site can control all connected devices by sending commands such as play, pause, fast forward, etc. By this manner, content resident on the disks as well as live web-originated content can be synchronously interwoven for any number of connected users simultaneously.

Referring to FIG. 12, shown is a depiction of user interaction using a remote control.

Shown are a “view button pressed” block (1202), a web view (1204), a content view (1206), an InterActual mode (1208), and a full-screen mode (1210).

A user has two views between which he or she can switch, one being from the world wide web (WWW) and the other being from the disk content. Users accessing a display device (102) by remote control has, in one embodiment, access to both views (or “worlds”) at any time through the “view” button. Additionally, in one embodiment, a graphics subsystem can support this by having two graphic “planes,” one for each view. By having a separate disk content view, the content owner can control the presentation of information (scripts, pictures, videos, etc.). This aids in merchandising of the content.

In the example of FIG. 12, by use of a remote control view button at “view button pressed” block (1202), the user can select either the web view (1204) or the content view (1206). The content view (1206) is the INDEX.HTM file (residing in the /COMMON directory on a disk) which is a cross-platform (or multi-platform) file designed to be viewable on substantially all of the supported platforms. Alternatively, the content view (1206) is the CONNECT.HTM file from the storage of the device (used in lieu of the INDEX.HTM, for example, when no disk is inserted, or when a disk not in accordance with the present embodiment is inserted).

The web view (1204) is the InterActual-compatible device's “home page.” This page is under the control of the device manufacturer. As an example, this page may contain the manufacturer's logo and/or system (device) specific information. Alternatively, this page may be determined by user-controlled settings of the device.

The content view (1206) is the content “home page” and resides at /COMMON/INDEX.HTM (on a disk) or as CONNECT.HTM in the device's memory (e.g. flash ROM). Depending on the player mode of the device, the content view (1206) can default to either “InterActual” mode (1208) or full-screen mode (1210).

When a disk contains “InterActual” content, the content authors can create it such that the user experience begins with the “InterActual” content. This is an option available to the disk authors at the time of authoring.

Referring to FIG. 13, shown is a remote control according to an embodiment of the present invention.

Shown is a remote control (1300), having a back button (1302), a view button (1304), a home button (1306), an IA (InterActual) button (1308), a stop button (1310), a next button (1312), a prev button (1314 play button (1316), an up button (1318), a left button (1320), a right button (1322), and a down button (1324).

The back button (1302) has different uses. In an Internet view, the back button (1302) goes back to the previously-visited web page. In a content (from disk) view, the back button (1302) goes back to the last web page or video/web page combination which was viewed.

The view button (1304) switches between a full-screen Internet (or web) view to a full-screen content (from disk) view.

The home button (1306) has different uses. In an Internet view, the home button (1306) goes to the device=s home page which, as example, could be the manufacturer=s page or a user-specified page if changed by the user. In a content (from disk) view, the home button (1306) goes to the content home page which, as example, could be INDEX.HTM from the disk ROM or CONNECT.HTM from the flash system memory.

The IA button (1308), or “InterActual” button, is a dedicated button which is discussed in greater detail under the subheading “context sensitive application” later herein in reference to FIG. 13.

The playback buttons, stop (1310), next (1312), prev (previous) (1314), and play (1316), control the video whenever there is video being displayed (either in full-screen mode or in a window). If no video is being displayed, pressing of the play button (1316), in one embodiment, loads a special page VIDPLAY.HTM if it is present in the /COMMON directory of an inserted disk ROM. If the VIDPLAY.HTM file is not found, pressing of the play button (1316), in one embodiment, plays the DVD in full-screen video mode.

The navigation buttons, up (1318), left (1320), right (1322), and down (1324), in one embodiment, do not work for DVD navigation unless video is playing in full-screen mode. If video is playing in a window within a web page, these buttons enable navigation of the web page, especially useful for navigating to and selecting HTML hyperlinks. In this embodiment, the windowed video will be a selectable hyperlink as well. Selecting the video window (by an enter button not shown) causes it to change to full-screen video. In another embodiment, a mouse or other pointing device such as a trackball, hand glove, pen, or the like can be integrated with the system.

Context Sensitive Application

In one embodiment, use of a unique event and a special button on the remote control (1300), a specific section in the media can trigger a context-sensitive action. Events that are used for this purpose are context sensitive to the media content. As example, an event can trigger during a certain scene, upon which, in response to a user's selection of an object within the scene can display information relating to the selected object.

In one embodiment, when media content subscribes to a particular event for context sensitive interaction, which can be done on a chapter or time basis, the DVD navigator can optionally overlay transparently some place on the display alerting the user that context-sensitive interaction is available. Similar to when a network logo is transparently displayed at the bottom of a television screen, in one embodiment, an InterActual logo is displayed to signify there is more info available for the displayed scene, and so forth. This ability is implemented through the media services (420) and the graphical subsystem of the DVD navigator (622).

Regarding FIG. 14, shown is an example of a computer to Internet connection according to one embodiment.

Shown are a server 1402, an Internet 1404, a cookie 1406, and a computer 1408.

The server 1402 is coupled to the Internet 1404. The Internet (1404) is coupled to the computer (1408) with the cookie (1406) shown being communicated along the connection between the computer (1408) and the Internet (1404).

In operation, a user causes computer (1408) to access a web page resident on the server (1402) via the connections through the Internet. In so doing, the website containing the accessed web page causes the cookie (1406) to be sent to the computer (1408) and stored on a local storage drive for later reference by the storing website.

A cookie is information that a web site (server side program) puts on a client's computer or permanent storage so that information is retained from browsing session to browsing session (or later use in the same session). Typically, a cookie records user-specific information such as past user choices during interaction with the web site. Cookies are useful because the nature of the hypertext transfer protocol (HTTP) used by the World Wide Web (WWW) is that each web page request is completely independent of all other requests. Thus a cookie is a mechanism which allows a web site to retain access to past interaction history with particular clients.

The embedded browser supports two types of cookies, system cookies and general-purpose cookies. System cookies are predefined in both name and size as part of the Application programming interface (API). System cookies are automatically created and modified by the player hardware and embedded browser. General-purpose cookies are cookies that can be placed by web pages. Both system cookies and general-purpose cookies may be volatile or non-volatile (maintained even if storing system is powered off) depending on their specific function.

The following cookies are supported by the application programming interface (API):

Platform cookie, a non-volatile cookie of 32 bytes length that contains unique hardware information, including a hardware identifier for the device.

UserID cookie, a non-volatile cookie of 32 bytes length that contains unique user login information (useful for multi-user households).

An application programming language version cookie, a non-volatile cookie of 32 byte in length which maintains version information for the supported levels of the application programming interface (API).

Player Mode cookie, a non-volatile cookie of 32 bytes length which maintains the default player mode for the Application programming interface (API) playback, movie mode, or InterActual mode.

Disk cookie, a volatile cookie of 214 bytes length which contains currently inserted disk information including a unique ID generated by local hardware based on hashing algorithm provided by InterActual and (2) the id field from PCFreindly titles (based on the file DISC.ID) provided the disk is a PCFreindly (PCF) disk. This cookie is generated with null content when no disk is currently in the drive.

The application programming interface (API) also provides for a minimum of 100 general-purpose cookies that can be used by general web sites. Each of these cookies can be up to 200 bytes in size, therefore the minimum storage requirement for cookies is determined as follows:

-   -   4 reserved 32 byte system cookies=128 bytes     -   1 reserved 214 byte system cookie=214 bytes     -   100 general-purpose cookies of 200 bytes=20,000 bytes

Thus total cookie storage is a minimum of 20,342 bytes.

Referring to FIG. 15, shown is an example of a bookmark according to one embodiment.

Shown are a video (1504), a bookmark (1504), and a screen image (1506).

In operation, bookmark (1504) records the necessary information to return to the same point in the video playback of video (1502) by recording the title number, time position, chapter, angle, sub picture, and language.

Bookmarks maintain the state of player by storing general parameter registers (GPRMs) for a specific title. Video bookmarks mark where the video player state was last. For the application programming interface (API), one bookmark per title is required. In one embodiment, 32 bookmarks are recommended.

A bookmark has a minimum size of 10 bytes. There is at least one bookmark per disk. These bookmarks are managed in a queue such that creating a new bookmark for a specific disk (using the disk cookie) will overwrite the last bookmark in the queue for that disk provided the queue is full. If a new disk is encountered, the oldest bookmark of the set is overwritten. In one embodiment, a capacity of 32 bookmarks is required, which requires a minimum of 320 bytes of persistent storage.

A more detailed treatment of bookmarks and the bookmark queue is presented in Application programming interface (API) Specification@(hereby incorporated by reference).

Bookmark structure is described in table 1. TABLE 1 byte offset field name description data type 0 TitleNumber number of title (1-99) signed byte 1-5 ElapsedTime time in elapsed milliseconds signed 4 byte from start (0 to 2{circumflex over ( )}31 − 1) 6 Chapter Chapter (1-99) signed byte 7 Angle Angle (1-9) signed byte 8 sub picture Sub picture (0-31) signed byte 9 AudioLang Audio Language (1-99) signed byte

Content Caching

In an embodiment, one megabyte (1 MB) of cached simultaneous content is recommended. In an embodiment, the cache size should be specified in the hypertext transfer protocol (HTTP) header sent between the player and attached servers. Larger local storage for caching web pages and the like can be used with the present invention.

Content Support

In one embodiment, the Application programming interface (API) content support for fully compatible InterActual-compliant devices is defined in the two areas of content format support and content type support as follows:

Content format Support

Content format support, according to one embodiment of the present invention, includes hypertext transfer protocol (HTTP) version 1.0, hypertext markup language (HTML) version 4.0 (frames, tables, event handler extensions), (CSS) version 1, (DOM) version 0, ECMAScript version 1.1 (note ECMAScript and DOM 0 is equivalent to JavaScript version 1.1. Requires platform and language detection), (SSL) version 2.0, Application programming interface (API) version 1.0 (embedding, commands, properties, and events), cookies (used to store hardware platform information and essential disk identification information).

Content Type Support

Mandatory content type support includes MPEG1 and MPEG2 video files, WAV, AU, AIFF, and MP3 audio files, GIF, JPEG, and PNG graphics files.

Advanced Format Support

The advanced format support is not required for a standard implementation. Advanced formats include, but are not limited to, Macromedia Flash (this is encouraged as Flash is very popular for studio DVDs), extensible markup language (XML), Chat, and streaming media such as MPEG4, Real Player, and Quicktime. With the advent of modern and other advanced Internet connectivity solutions, more additions to the advance format capabilities will be made.

More Complex Menu Structures

A DVD-Video is shipped with a simple HTML page that does little except start a movie. However, it also checks to see if that movie has any web site updates. If it does, then it launches a new movie menu that is downloaded from the web. Obviously, the downloaded menu can be designed much later than the DVD. The menu may have e-commerce opportunities, such as promoting gifts for purchase, tickets for the sequel to the movie on the DVD, etc. The window of time of these opportunities is decided by the content owner and is completely independent of the DVD. The menu can have links to actors/actresses featured in the DVD. Additionally, the menu can provide options to navigate the DVD with finer granularity than the original chapters on the DVD provide.

Special Coupon from Retailer

DVDs authored with different logos at the head (such as logos for Best Buy, Circuit City, or the like) can be used for advertising purposes. For example, the disk start-up can be specified to display the logo of the original retailer and the consumer can be directed to access the retailer's website for promotional advertisements. This can be accomplished by checking the burst cutting area (BCA) on the disk which would indicate the identity of the retailer.

Interactual Application Programming Interface

Following is presented an exemplary list of the commands, properties, and events for several embodiments of the InterActual Programming Interface. This list is presented as follows:

-   -   A The DVD-Video and CD-Digital programming interface         -   A.1 Commands         -   A.2 Properties         -   A.3 Events         -   A.4 Interface Applicability     -   B The DVD-Audio Specific Interface         -   B.1 Commands         -   B.2 Properties         -   B.3 Events     -   C Advanced InterActual API         -   C.1 Commands         -   C.2 Properties         -   C.3 Events             A The DVD-Video and CD-Digital Programming Interface             A.1 Commands

Commands will control the playback and navigation mechanisms of a DVD-Video/Audio or CD-DA disc. Commands can be used by the calling application (HTML/JavaScript) to initiate these functions. This section provides a detailed description of each InterActual command with its associated parameters.

-   -   1) All commands support return values. These will all be         JavaScript numbers, however the underlying API implementation         should set a signed 4-byte (32-bit) value for each of these.     -   2) Each command lists applicable return values.     -   3) A “−3” will be returned for commands not supported by a         specific system or navigator.         A.1.1 InterActual.Play( )

Summary:

-   -   Starts playback of the DVD.

Parameters:

-   -   None required

Example:

-   -   This command controls playback of the video.     -   InterActual.Play( )

Notes:

-   -   For DVD Video this command starts playing from the First Play         PGC. See also: InterActual.PlayTitle(t);     -   InterActual.PlayChapter(t,c); InterActual.PlayTime(t,h,m,s,x)

Media Supported: DVD Video DVD Audio CD Audio x x x

Return Values: Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.2 InterActual.PlayTitle(t)

Summary:

-   -   Start playback at the specified title number.

Parameters:

-   -   t Tide number ranging from 1-99; signed 1 byte integer

Example:

-   -   Play title number 3.     -   InterActual.PlayTide(3)

Notes:

-   -   This command requires that the UOP2 operation is permitted

See also:

-   -   InterActual.Play( ); InterActual.PlayTime(t,h,m,s,x);         InterActual.PlayChapter(t,c)

Media Supported: DVD Video DVD Audio CD Audio x

Return Values: Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.3 InterActual.PlayChapter(t,c)

Summary:

Start playback at the specified title number and chapter value. Parameters: t Title number ranging from 1-99; signed 1 byte integer c Chapter number ranging from 1-99 for One_Sequential_PGC_Title Chapter number ranging from 1-999 for Multi_PGC_Title Signed 2 byte integer

Example:

-   -   Play the 2^(nd) chapter of title number 6.     -   InterActual.PlayChapter(6,2)

Notes:

-   -   If in TT_DOM and already within specified title,         InterActual.SearchChapter is issued to maintain GPRM values.         Otherwise, InterActual.PlayChapter is issued.

Requires:

-   -   This command requires that the UOP1 operation be permitted.

See also:

-   -   InterActual.PlayTitle(t); InterActual.SearchChapter(c)

Media Supported DVD Video DVD Audio CD Audio x

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.5 InterActual.PlayChapterAutoStop(t,c,n)

Summary:

-   -   Start playback of the specified title t at chapter c for n         chapters.

Parameters t Title number ranging from 1-99; signed 1 byte integer c Chapter number ranging fram 1-99 for One_Sequential_PGC_Title Signed 2 byte integer n Number of chapters to play ranging from 1-998; a value of “1” signifies that the chapter “c” will be played and play will stop after that chapter, Signed 2 byte integer

Example:

-   -   Play the 2^(nd), 3^(rd) and 4^(th) chapters of title number 6.         -   InterActual.PlayChapterAutoStop(6,2,3)

Requires:

-   -   This command requires that the UOP1 operation be permitted.

See also:

-   -   InterActual.PlayChapter(t,c)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.5 InterActual.PlayTime(t,h,m,s,x)

Summary:

-   -   This command starts playback in the specified title number (t)         at the specified time in hours (h), minutes (m), seconds (s) and         milliseconds (x). For DVD-Audio, the first parameter represents         the title group number (t).

Parameters t DVD-Video: Title number ranging from 1-99 DVD-Audio: Title group number ranging from 1-9 CD-Audio: Track number ranging from 0-99 where   if t=0 then h, m, s are relative to the   start of the CD-Audio,   else t is the track number and   the h, m, s are relative to that track Signed 1 byte integer h Hours where h can range from 00-23; signed 1 byte integer m Minutes where m can range from 00-59; signed 1 byte integer s Seconds where s can range from 00-59; signed 1 byte integer x Milliseconds where x can range from 0-999 (e.g. 1 would be interpreted as 0.001 second; for video, this will be rounded to the nearest frame) Signed 2 byte integer

Examples:

-   -   Start playing from the specified time position of the current         title. For example to play title 2 from 1 hour, 10 minutes, 30         seconds, millisecond 79 in the title     -   InterActual.PlayTime(2,1,10,30,79)

Notes:

-   -   If in TT_DOM or TT_GR_DOM and already within a specific title,         InterActual.SearchTime is issued to maintain GPRM values.         Otherwise, InterAcutal.PlayTime is issued and the GPRM registers         are initialized.

Requires:

-   -   DVD-Video: This command requires that the UOP0 operation be         permitted.

See also:

-   -   InterActual.SearchTime(h,m,s,x)

Media Supported: DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.6 InterActual.PlayTimeAutoStop(t,sh,sm,ss,sx,eh,em,es,ex)

Summary

-   -   This command starts playback in the specified title number (t)         at the specified start time in hours (sh), minutes (sm), seconds         (ss) and milliseconds (sx) and ends at the specified end time         (using the same variables for hours, minutes, seconds and         milliseconds: eh, em, es, ex). For DVD-Audio, the first         parameter represents the title group number (t).

Parameters t DVD-Video: Title number ranging from 1-99 DVD-Audio: Title group number ranging from 1-9 CD-Audio: Track number ranging from 0-99 where   if t=0 then h, m, s are relative to the   start of the CD-Audio,   else t is the track number and   the h, m, s are relative to that track Signed 1 byte integer sh Start hour where h can range from 00-23; Signed 1 byte integer sm Start minutes where m can range from 00-59; Signed 1 byte integer ss Start seconds where s can range from 00-59; Signed 1 byte integer sx Start milliseconds where x can range from 0-999 (e.g. 1 would be interpreted as 0.001 second; for video, this will be rounded to the nearest frame); Signed 2 byte integer eh End hour where h can range from 00-23; Signed 1 byte integer em End minutes where m can range from 00-59; Signed 1 byte integer es End seconds where s can range from 00-59; Signed 1 byte integer ex End milliseconds where x can range from 0-999 (e.g. 1 would be interpreted as 0.001 second; for video, this will be rounded to the nearest frame) Signed 2 byte integer

Examples

-   -   Start playing from the specified time position of the current         title to the end position. For example to play title 2 from 1         hour, 10 minutes, 30 seconds, millisecond 79 in the title to 1         hour, 11 minutes, 30 sec 0 milliseconds:     -   InterActual.PlayTimeAutoStop(2,1,10,30,79,1,11,30,0)

Requires

-   -   DVD-Video: This command requires that the UOP0 operation be         permitted

See also

-   -   InterActual.PlayTime(t,h,m,s,x)

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values No. Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.7 InterActual.PlayTrack(gt)

Summary

-   -   Start playback at the beginning of the specified track number         with the selected title group number.

Parameters g DVD-Audio: Title group number ranging from 1-9 (within a Volume); signed 1 byte integer CD-Audio: Ignored t Track number ranging from 1-99; signed 1 byte integer

Example

-   -   Start playing the 2^(nd) track of title group 1.     -   InterActual.PlayTrack(1,2)

Notes

-   -   If in TT_GR_DOM and already within specified title group,         InterActual.SearchTrack is issued to maintain GPRM values.         Otherwise, InterActual.PlayTack is issued In case of CD-DA,         group number should be 1 by default.     -   This method shall not be used for the playing a Hidden Track The         method InterActual.HiddenPlayTrack( ) shall be used instead

See also:

-   -   InterActual.SearchTrack(t); InterActual.PlayTideGroup(g)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.8 InterActual.SearchChapter(c)

Summary

-   -   Jump to the beginning of the specified chapter within the         current title.

Parameters c Chapter number ranging from 1-99 for One_Sequential_PGC_Title Chapter number ranging from 1-999 for Multi_PGC_Title; Signed 2 byte integer

Example

-   -   Play the 2^(nd) chapter of currently playing title.     -   InterActual.SearchChapter(2)

Notes:

-   -   Maintains current GPRM values.

Requires:

-   -   This command requires that the UOP1 and UOP5 operations are         permitted.

See also:

-   -   InterActual.PlayTide(t); InterActual.PlayChapter(t,c)

Media Supported DVD Video DVD Audio CD Audio x

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.9 InterActual.SearchTime(n)

Summary

-   -   This command starts playback at the specified time in hours (h),         minutes (m), seconds (s) and milliseconds (x).

Parameters h Hours where h can range from 00-23; signed 1 byte integer m Minutes where m can range from 00-59; signed 1 byte integer s Seconds where s can range from 00-59; signed 1 byte integer x Milliseconds where x can range from 0-999 (e.g. 1 would be interpreted as 0.001 second; for video, this will be rounded to the nearest frame) Signed 2 byte integer

Examples

-   -   Start playing from the specified time position of the current         title. For example to play from 1 hour, 10 minutes, 30 seconds,         millisecond 200 in the title     -   InterActual.SearchTime(1, 10, 30, 200)

Notes

-   -   Maintains current GPRM values. For CD-Audio, h, m, s are         relative to the start of the CD-Audio.

Requires

-   -   DVD-Video: This command requires that the UOP0 and UOP5         operations are permitted.

See also:

-   -   InterActual.PlayTime(t,h,m,s,x)

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.10 InterActual.SearchTrack(t)

Summary:

-   -   Start playback at the beginning of the specified track number         with the current title group number.

Parameters

-   -   t Track number ranging from 1-99; signed 1 byte integer

Example

-   -   Start playing the 3^(rd) track of the current title group.     -   InterActual.SearchTrack(3)

Notes

-   -   GPRM values are maintained. Should also work for CD-DA.

See also:

-   -   InterActual.PlayTrack(g,t);     -   InterActual.PlayTitleGroup(g)

Media Supported DVD Video DVD Audio CD Audio x x

Return Values No. Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.11 InterActual.TotalNumChapters(t)

Summary

-   -   Returns the total number of chapters (Part of Tides—PTT)         available for current title/title group.

Parameters

-   -   t Title Number ranging from 1-99; signed 1 byte integer

Return Value

-   -   JavaScript Number Signed 2 byte integer;

Number of chapters (or PTTs) ranging from 1-999 Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the total number of chapters in the title/title group.     -   TotalChapters=InterActual.TotalNumChapters(1)

Notes

-   -   The Tide Group range is only from 1-9.

Media Supported DVD Video DVD Audio CD Audio X X A.1.12 InterActual.NextPG( )

Summary

Halts playback of the current presentation and starts the presentation from the beginning of the next Program within the same Program Chain (PGC).

Parameters

-   -   None required

Example

-   -   DVD-Video Example: Proceed to the next program, skipping the         remainder of the current program of the current title.     -   InterActual.NextPG( )

Notes

-   -   DVD-Video: Valid in both the title and menu domains. For a One         Sequential PGC Title, this method halts playback of the current         program and starts playback from the next program within the         title.     -   DVD-Audio: Valid in only video-capable DVD-Audio player, and         only in the Audio Manager domain.

Media Supported DVD Video DVD Audio CD Audio x x

Return Values No. Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.13 InterActual.PrevPG( )

Summary

-   -   Halts playback of the current presentation and starts the         presentation from the beginning of the previous Program with the         same Program Chain (PGC).

Parameters

-   -   None required

Example

-   -   DVD-Video example: Proceed to the previous program of the         current title.     -   InterActual.PrevPG( )

Notes

-   -   DVD-Video: Valid in both the title and menu domains. For a One         Sequential PGC Title, this method halts playback of the current         program and starts playback from the start of the current         program within the title (same as TopPG_Search). If playback is         within 10 seconds of the start of a program, however, this         method will force the presentation to go to the start of the         previous program. If already in first program, then playback         starts at beginning of the program upon InterActual.PrevPG( ).     -   DVD-Audio: Valid in only video-capable DVD-Audio player, and         only in the Audio Manager domain.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.14 InterActual.GoUp( )

Summary

-   -   Halts playback of the current Program Chain (PGC) and starts the         playback of the new PGC which is specified as GoUp_PGCN.

Parameters

-   -   None required

Example

-   -   Proceed to the PGC specified as the GoUp_PGCN in the PGCI.     -   InterActual.GoUp( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.15 InterActual.NextTrack( )

Summary

-   -   Halts playback of the current track and starts playback from the         next track in the same Title Group.

Parameters

-   -   None required

Example

-   -   Skip to the next track.     -   InterActual.NextTrack( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.16 InterActual.PrevTrack( )

Summary

-   -   Halts playback of the current track and starts playback from the         start of the current track. If it is at the start of a track it         will go to the start of the previous track.

Parameters

-   -   None required

Example

-   -   Skip back to the previous track.     -   InterActual.PrevTrack( )

Notes

-   -   This method halts playback of the current track and starts         playback from the start of the current track within the title         group (same as TopTK_Search). If playback is within 10 seconds         of the start of a track, however, this method will force the         presentation to go to the start of the previous track (same as         PrevTK_Search). If already in first track, then playback starts         at beginning of the track upon InterActual.PrevTrack( ).

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.17 InterAcutal.TotalTrackTime(t)

Summary

-   -   Returns the total time of track t in milliseconds (for CD-DA).

Parameters

-   -   t CD-DA track number ranging from 1-99; signed 1 byte integer

Return Value

JavaScript Number Signed 4 byte (32-bit) integer ranging from 0 to 2³¹-1 Number Name Description −1 GeneralError Unknown error condition −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the length of track 5.     -   Track5Length=InterActual.TotalTrackTime(5)

Media Supported DVD Video DVD Audio CD Audio X A.1.18 InterActual.Pause( )

Summary

-   -   Pause playback of the DVD (pause is on). Subsequent use of this         command resumes playback (e.g. pause is off). In other words,         this method operates in a “toggle” fashion.

Parameters

-   -   None required

Example

-   -   Pause the playback.     -   InterActual.Pause( )

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.19 InterActual.Stop( )

Summary

-   -   Stops the playback of the current media Stops execution of the         current PGC and transfers to the “Stop State”.

Parameters

-   -   None required

Example

-   -   Stop playback of the current DVD.     -   InterActual.Stop( )

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.20 InterActual.FastForward(x)

Summary

-   -   This command fast-forwards the current DVD at speed x.

Parameters x x can range from 2-99; signed 1 byte integer For CD-DA, the number 2-99 correlates to the number of seconds to advance and resume playback.

Example

-   -   Fast-forwards the current DVD at 8× speed.     -   InterActual.FastForward(8)

Notes

-   -   Some players may only allow values of 2, 4, 8, 16, and 32. If         this command is used with a value not in the list, then the         underlying software will approximate to the nearest available         value (for instance 3 is specified and 4 is chosen) rather than         return with an error code.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values No. Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.21 InterActual.Rewind(x)

Summary

-   -   Rewind or reverse play the current DVD at speed x.

Parameters x x can range from 2-99; signed 1 byte integer For CD-DA, the number 2-99 correlates to the number of seconds to rewind and resume playback.

Example

-   -   Rewind the current DVD at 8× speed.     -   InterActual.Rewind(8)

Notes

-   -   Some players may only allow values of 1, 2, 4,8, 16, and 32. If         this command is used with a value not in the list, then the         underlying software will approximate to the nearest available         value (for instance 3 is specified and 4 is chosen) rather than         return with an error code.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.22 InterActual.Menu(menuID)

Summary

-   -   This command jumps to the selected menuID.

Parameters menuID Menu choices for DVD-Video: 0: reserved 1: Title Menu 2: Root Menu 3: Chapter Menu 4: Audio Languages Menu 5: Sub-picture Languages Menu 6: Angle Menu Signed 1 byte Integer “ ” DVD-Audio does not support a menu ID. For DVD-Audio, the Menu method calls the Entry PGC in the Audio Manager Menu.

Example

-   -   DVD-Video: To call the Root Menu of the current VTS     -   InterActual.Menu(2)

Notes

-   -   All menus are optional and not necessarily present on each DVD         disc.

Requires

-   -   DVD-Video: The associated menu UOP must permit the operation:         Title Menu (UOP10), Root Menu (UOP11), Sub-picture Menu (UOP12),         Audio Menu (UOP13), Angle Menu (UOP14), Chapter Menu (UOP15).

See also:

-   -   InterActual.Resume( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid A.1.23 InterActual.Resume( )

Summary

-   -   Resume the playback interrupted by a menu call.

Parameters

-   -   None required

Example

-   -   We will resume video or audio playback after a menu call.     -   InterActual.Resume( )

Notes

-   -   This is called after a Menu command and it is only valid from a         Menu.

See also:

-   -   InterActual.Menu(menuID)

Media Supported DVD Video DVD Audio CD Audio x x

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc A.1.24 InterActual.StillOff( )

Summary

-   -   This command is the operation to release a Still (VOBU Still,         Cell Still, PGC Still).

Parameter

-   -   None required

Example

-   -   The following releases the current still:     -   InterActual.StillOff( )

Notes

-   -   The Still is enforced by the Navigation system, versus a Pause         that is enforced by User Operation. During a Still condition,         the count of the Navigation Tuner and General Parameters in         Counter mode are continued as usual. However, this is not the         case for Pause. Additionally, button functions are valid during         a Still condition—not so for Pause.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values No. Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by cunent UOP fields −3 NotSupported File type or feature not supported at this time A.1.25 InterActual.SelectUpBottom( )

Summary

-   -   Selects the up direction button.

Parameters

-   -   None required

Example

-   -   Select the “up” direction button on the current menu.     -   InterActual.SelectUpButton( )

See also:

-   -   InterActual.SelectDownButton( );     -   InterActual.SelectLeftButton( );     -   InterActual.SelectRightButton( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time A.1.26 InterActual.SelectDownButtom( )

Summary

-   -   Selects the down direction button.

Parameters

-   -   None required

Example

-   -   Select the “down” direction button on the current menu.     -   InterActual.SelectDownButton( )

See also

-   -   InterActual.SelectUpButton( )     -   InterActual.SelectLeftButton( )     -   InterActual.SelectRightButton( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time A.11.7 InterAcutal.SelectLeftButtom( )

Summary

-   -   Selects the left direction button.

Parameters

-   -   None required

Example

-   -   Select the “left” direction button on the current menu.     -   InterActual.SelectLeftButton( )

See also

-   -   InterActual.SelectUpButton( )     -   InterActual.SelectDownButton( )     -   InterActual.SelectRightButton( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time A.1.28 InterAcuctalSelectRightButton( )

Summary

-   -   Selects the right direction button.

Parameters

-   -   None required

Example

-   -   Select the “right” direction button on the current menu.     -   InterActual.SelectRightButton( )

See also:

-   -   InterActual.SelectUpButton( );     -   InterActual.SelectDownButton( );     -   InterActual.SelectLeftButton( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time A.1.29 InterActual.SelectButtonAndActivate(n)

Summary

-   -   Activate the specified highlighted button, where n is the button         number.

Parameters n Number of the button where n may range from 1-36; signed 1 byte integer

Example

-   -   Select button number 2 on the current menu.     -   InterActual.SelectButtonAndActivate(2)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.1.30 InterActual.ActivateButton( )

Summary

-   -   Activate the current highlighted button.

Parameters

-   -   None required

Example

-   -   Activate the currently highlighted button.     -   InterActual.ActivateButton( )

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields A.131 InterActual.SelectAudio(n)

Summary

-   -   Sets the stream number of the Audio to play.

Parameters n DVD-Video: Number of the Audio streams in the Title Domain may range from 0 to 7 DVD-Audio: The Audio selection may be changed to 0 or 1 Signed 1 byte integer

Example

-   -   Select audio steam number 1.     -   InterActual.SelectAudio(1)

Notes

-   -   The number of audio streams in Menu Domain is, at most, 1; the         author either includes audio in a menu or not.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.13.2 InterActual.SelectSubpicture(n)

Summary

-   -   Sets the stream number of the Sub-picture to display.

Parameters n DVD-Video: Number of the Sub-picture streams in the Title Domain may range from 0 to 31 DVD-Audio: The Sub-picture selection may range from 0 to 31 Signed 1 byte integer

Example

-   -   Select sub-picture number 23.     -   InterActual.SelectSubpicture(23)

Notes

-   -   This command is only applicable for the Title Domain.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.1.33 InterActual.SelectAngle(n)

Summary

-   -   Sets the angle number of the Angle to play.

Parameters n Angle number n ranging from 1-9; signed 1 byte integer

Example

-   -   Set the angle number to 3.     -   InterActual.SelectAngle(3)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.1.34 InterActual.SelectParentalLevel(n)

Summary

-   -   Selects parental level of the player.

Parameters n Parental level ranging from 1-8 where 1 = G 2 = Reserved 3 = PG 4 = PG13 5 = Reserved 6 = R 7 = NC-17 8 = Reserved Signed 1 byte integer

Example

-   -   Set the Parental Level to 3 for PG.     -   PG=3;     -   InterActual.SelectParentalLevel(PG)

Notes

-   -   At the start of playback of a DVD, this command can be used to         select the level and the ParentalEvent will be raised Thus,         parents can use this to prevent playback of objectionable         material.     -   This command is only available in Stop State.

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −6 ParmRangeErr Parameter out of range or invalid A.1.35 InterActual.AudioLanguage(x,rc)

Summary

-   -   Returns the audio language for specified audio stream number x.

Parameters x Audio stream number ranging from 0-7 Signed 1 byte integer rc Character value; unsigned 2 bytes char represented by the coded “Language Symbols” defined in ISO-639. See the language codes section in the appendix.

Return Value Number Name Description 0 OK Successful execution but code not specified −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the language for audio stream 3.     -   AudioLang3=InterActual.AudioLanguage(3)

Media Supported DVD Video DVD Audio CD Audio X X A.1.36 InterActual.AudioLanguageExtension(x)

Summary

-   -   Returns the audio language extension for specified audio stream         number x.

Parameters x Audio stream number ranging from 0-7

-   -   Signed 1 byte integer

Return Value JavaScript Number Unsigned 1 byte integer See the language codes extensions section in the appendix. Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the language extension for audio stream 3.     -   AudioLangExt3=InterActual.AudioLanguageExtension(3)

Media Supported DVD Video DVD Audio CD Audio X X A.1.37 InterActual.SubpictureLanguage(x, rc)

Summary

-   -   Returns the sub-picture language for specified sub-picture         number x (sub-picture language is the 2-digit locale).

Parameters x Sub-picture number ranging from 0-31 Signed 1 byte integer rc Character return value; unsigned 2 bytes char represented by the coded “Language Symbols” defined in ISO-639. See the language codes section in the appendix.

Return Value Number Name Description 0 OK Successful execution but code not specified −1 GenenalError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the locale for sub-picture 3.     -   LocaleSubP23=InterActual.SubpictureLanguage(3)

Media Supported DVD Video DVD Audio CD Audio X X A.1.38 InterActual.SubpictureLanguageExtension(x)

Summary

-   -   Returns the sub-picture language extension for the specified         sub-picture number x.

Parameters x Sub-picture number ranging from 0-31 Signed 1 byte integer

Return Value JavaScript Number Unsigned 1 byte integer See the language code extensions section in the appendix. Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the language for sub-picture language extension 3.     -   Lang3Ext=InterActual.SubpictureLanguageExtension(3)

Media Supported DVD Video DVD Audio CD Audio X X A.1.39 InterActual.GetGPRM(r)

Summary

-   -   Gets the specified General Parameter Register value.

Parameters r General Parameter Register Number from 0 to 15; signed 1 byte integer

Return Value JavaScript Signed 4 byte (32-bit) value in the GPRM; Number If the return value is zero (0) or any positive number, it can be assumed that the 2 low-order bytes are the register contents. If this value is negative, it is an error condition, which are listed below. Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Get the contents of GPRM(1)     -   X=InterActual.GetGPRM(1)

Media Supported DVD Video DVD Audio CD Audio X X A.1.40 InterActual.GetSPRM(r)

Summary

-   -   Get the specified System Parameter Register value.

Parameters r SPRM Register Number from 0 to 25; signed 1 byte integer  0: Menu Description Language Code (M_LCD or AMGM_LCD)  1: Audio Stream number (ASTN for TT_DOM, or ASLN for TT_GR_DOM)  2: Sub-picture stream number (SPSTN) and On/Off flag for TT_DOM  3: Angle Number (AGLN for TT_DOM)  4: Title Number (TTN for TT_DOM)  5: VTS Title Number (VTS_TTN for TT_DOM)  6: Title PGC number (TT_PGC for TT_DOM)  7: Part_of_Title number (PTTN) for One_Sequential_PGC_Title, or PG Number for TT_GR_DOM  8: Highlighted Button number (HL_BTNN) for Selection State  9: Navigation Timer (NV_TMR) 10: TT_PGCN for NV_TMR 11: Player Audio Mixing Mode (P_AMXMD) for Karaoke 12: Country Code (CTY_CD) for Parental Management 13: Parental Level (PTL_LVL) 14: Player Configuration (P_CFG) for Video 15: Player Configuration (P_CFG) for Audio 16: Initial Language Code (INI_LCD) for AST 17: Initial Language Code Extension (INI_LCD_EXT) for AST 18: INI_LCD for SPST 19: INI_LCD_EXT for SPST 20: Player Region 21: ATT Group Number (ATT_GRN) 22: ATT number (ATTN for TT_GR_DOM) 23: Track number (TKN for TT_GR_DOM) 24: ASV number (ASVN) 25: reserved

Return Value JavaScript Signed 4 byte (32-bit) value stored in the SPRM Number If the return value is zero (0) or any positive number, it can be assumed that the 2 low-order bytes are the register contents. If this value is negative, it is an error condition, which are listed below. Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Get System Parameter Register 1     -   X=InterActual.GetSPRM(1)

Media Supported DVD Video DVD Audio CD Audio X X A.1.41 InterActual.ValidUOP(x)

Summary

-   -   Check if a User Operation is valid. The disabled operations are         defined on the disc itself. The main purpose of this command is         to retrieve the current UOP status.

Note:

-   -   The specific operation (UOP bit) is disabled when the         corresponding bit is set to a “1”.

Parameters Signed 4 byte (32-bit) Bit Assignments:  0 = Time Play, Time Search  1 = PTT Play, PTT Search  2 = Title Play  3 = Stop  4 = Go Up  5 = Time Search, PTT Search  6 = Previous PG Search  7 = Next PG Search  8 = Forward Scan  9 = Backward Scan 10 = Title Menu Call 11 = Root Menu Call 12 = Sub-picture Menu Call 13 = Audio Menu Call 14 = Angle Menu Call 15 = Chapter Menu Call 16 = Resume 17 = Button Select/Activate 18 = Still Off 19 = Pause Off; Pause On 20 = Audio Stream Change 21 = Sub-picture Stream Change 22 = Angle Change; Parental level select 23 = Karaoke Presentation Mode Change 24 = Video Presentation Mode Change

Return Value JavaScript Number 0 = Permitted 1 = Prohibited Signed 1 byte integer Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   To retrieve and test the UOP bit for InterActual.PlayTime.     -   if (InterActual.ValidUOP(0x01))         -   f.write(“Time Play is prohibited”);     -   else         -   f.write(“Time Play is permitted”);

Media Supported DVD Video DVD Audio CD Audio X X A.1.42 InterActual.GetBCAField( )

Summary

-   -   Gets the 2-byte field from within the BCA for the current disc         side.

Parameters

-   -   None required

Return Value JavaScript Signed 4 byte (32-bit) value from the BCA; Number If the return value is zero (0) or any positive number, it can be assumed that the 2 low-order bytes are the BCA field contents (unencrypted). These individual bits can be used to determine actions (like the start-up title) based on the specific disc (versus title). If this value is negative, it is an error condition, which are listed below. Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time, in this case, the BCA is not accessible

Example

-   -   Query for the BCA field:     -   BCA_Test_bits=InterActual.GetBCAField( )

Media Supported DVD Video DVD Audio CD Audio X X A.1.43 InterActual.SupportedFeatures(x)

Summary

Use this command to check if features are supported. A number is passed in to test a specific feature of the API corresponding to the capabilities of the current system A “0” or ”1” value is returned specifying if the feature is supported or not. If a “1” is returned, the corresponding feature is supported and a “0” means it is not supported.

Parameters Signed 1 byte Index number corresponding to the command, property or events to be tested. See the table following for the list of number, ranging from 1-255 with “0” being a reserved value.

Return Value JavaScript Number 0 = Feature is not available 1 = Feature is available Signed 1 byte integer Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −6 ParmRangeErr Parameter out of range or invalid

Example

To retrieve the supported features for this InterActual device: ZOOMPAN = InterActual.SupportedFeatures(IA_CMD_ZOOM) if (ZOOMPAN) {   // can use Zoom... }

Media Supported DVD Video DVD Audio CD Audio X X X

Index List

The interfaces are listed below in a form that will be used for authoring templates (defined using a “var” statement in JavaScript) to avoid having to specify the numerical value directly. TABLE 5 Supported Features Indices Interface Index value DVD-Video & CD-DA Basic Reserved 0 IA_CMD_PLAY 1 IA_CMD_PLAYTITLE 2 IA_CMD_PLAYCHAPTER 3 IA_CMD_PLAYTIME 4 IA_CMD_PLAYTRACK 5 IA_CMD_SEARCHCHAPTER 6 IA_CMD_SEARCHTIME 7 IA_CMD_SEARCHTRACK 8 IA_CMD_TOTALNUMCHAPTERS 9 IA_CMD_NEXTPG 10 IA_CMD_PREVPG 11 IA_CMD_GOUP 12 IA_CMD_NEXTRACK 13 IA_CMD_PREVTRACK 14 IA_CMD_TOTALTRACKTIME 15 IA_CMD_PAUSE 16 IA_CMD_STOP 17 IA_CMD_FASTFORWARD 18 IA_CMD_REWIND 19 IA_CMD_MENU 20 IA_CMD_RESUME 21 IA_CMD_STILLOFF 22 IA_CMD_SELECTUPBUTTON 23 IA_CMD_SELECTDOWNBUTTON 24 IA_CMD_SELECTLEFTBUTTON 25 IA_CMD_SELECTRIGHTBUTTON 26 IA_CMD_SELECTBUTTONANDACTIVATE 27 IA_CMD_ACTIVATEBUTTON 28 IA_CMD_SELECTAUDIO 29 IA_CMD_SELECTSUBPICTURE 30 IA_CMD_SELECTANGLE 31 IA_CMD_SELECTPARENTALLEVEL 32 IA_CMD_AUDIOLANGUAGE 33 IA_CMD_AUDIOLANGUAGEEXTENSION 34 IA_CMD_SUBPICTURELANGUAGE 35 IA_CMD_SUBPICTURELANGUAGEEXTENSION 36 IA_CMD_GETGPRM 37 IA_CMD_GETSPRM 38 IA_CMD_VALIDUOP 39 IA_CMD_GETBCAFIELD 40 IA_CMD_SUPPORTEDFEATURES 41 IA_CMD_ENABLESUBPICTURE 42 IA_CMD_SETGPRM 43 IA_CMD_MUTE 44 IA_CMD_FULLSCREEN 45 IA_CMD_GOTOBOOKMARK 46 IA_CMD_SAVEBOOKMARK 47 IA_CMD_NETCONNECT 48 IA_CMD_SUBSCRIBETOEVENT 49 IA_CMD_PLAYCHAPTERAUTOSTOP 50 IA_CMD_PLAYTIMEAUTOSTOP 51 IA_CMD_NETDISCONNECT 52 Reserved 53-59 IA_PR_ELAPSEDTIME 60 IA_PR_TOTALELAPSEDTIME 61 IA_PR_TOTALTIME 62 IA_PR_TITLENUMBER 63 IA_PR_PGCNUMBER 64 IA_PR_CHAPTERNUMBER 65 IA_PR_TRACKNUMBER 66 IA_PR_PLAYSTATE 67 IA_PR_DOMAIN 68 IA_PR_AUDIONUMBER 69 IA_PR_SUBPICTURENUMBER 70 IA_PR_ANGLENUMBER 71 IA_PR_PARENTALLEVEL 72 IA_PR_BUTTONNUMBER 73 IA_PR_TOTALNUMAUDIO 74 IA_PR_TOTALTRACKS 75 IA_PR_TOTALTITLES 76 IA_PR_TOTALNUMSUBPICTURE 77 IA_PR_TOTALNUMANGLE 78 IA_PR_TOTALNUMBUTTON 79 IA_PR_MAJORVERSION 80 IA_PR_MINORVERSION 81 IA_PR_PLAYERMODE 82 IA_PR_MAXFAST 83 IA_PR_MAXFASTREVERSE 84 IA_PR_MEDIAID 85 IA_PR_DISCTYPE 86 IA_PR_BOOKMARK 87 IA_PR_ROMTYPE 88 IA_PR_INTERNETSTATUS 89 IA_PR_FULLSCREENMODE 90 Reserved 91-99 IA_EV_TITLE 100 IA_EV_CHAPTER 101 IA_EV_PGC 102 IA_EV_TIME 103 IA_EV_TRACK_TIME 104 IA_EV_TRACK 105 IA_EV_ANGLE 106 IA_EV_STATE 107 IA_EV_SPEED 108 IA_EV_UOP 109 IA_EV_DOMAIN 110 IA_EV_AUDIO 111 IA_EV_SUBPICTURE 112 IA_EV_PARENTAL 113 IA_EV_REGION 114 IA_EV_EJECT 115 IA_EV_INSERT 116 IA_EV_GPRM 117 IA_EV_INFO 118 IA_EV_RC_BUTTON 119 IA_EV_NUMBER_OF_ANGLES 120 Reserved 121-129 DVD-Audio Basic IA_CMD_PLAYTITLEGROUP 130 IA_CMD_NEXTSLIDE 131 IA_CMD_PREVSLIDE 132 Reserved 133-139 IA_PR_TITLEGROUPNUMBER 140 IA_PR_SLIDENUMBER 141 Reserved 142-144 IA_EV_TITLE GROUP EVENT 145 IA_EV_SLIDE EVENT 146 Reserved 147-149 DVD-Video & CD-DA Advanced IA_CMD_OPEN 150 IA_CMD_SLOW 151 IA_CMD_STEP 152 IA_CMD_SLOWREVERSE 153 IA_CMD_ZOOM 154 IA_CMD_PAN 155 IA_CMD_ENABLECCTEXT 156 IA_CMD_MENULANGUAGE 157 IA_CMD_SELECTMENULANGUAGE 158 IA_CMD_SELECTPARENTALCOUNTRY 159 IA_CMD_SELECTKARAOKE 160 IA_CMD_SETMIXVOLUME 161 IA_CMD_CLOSE 162 IA_CMD_SHOWCONTROLS 163 IA_CMD_HIDECONTROLS 164 IA_CMD_SHOWCONTEXTMENU 165 IA_CMD_POPUPMENU 166 IA_CMD_SUPPRESSERRORS 167 IA_CMD_AUTOMOUSEHIDE 168 IA_CMD_OPENDRIVE 169 IA_CMD_LAUNCH 170 IA_CMD_PRESENTATIONMODE 171 IA_CMD_PRINT 172 IA_CMD_PLAYPERIODINTITLEAUTOSTOP 173 Reserved 174-189 IA_PR_CURRENTMENULANGUAGE 190 IA_PR_TOTALNUMMENULANGUAGE 191 IA_PR_PARENTALCOUNTRY 192 IA_PR_CCTEXTSTATUS 193 IA_PR_CCTEXT 194 IA_PR_MAXSLOW 195 IA_PR_MAXSLOWREVERSE 196 IA_PR_DISCREGION 197 IA_PR_DISCDIRECTORY 198 IA_PR_LOCALDIRECTORY 199 IA_PR_CURRENTZOOMX 200 IA_PR_CURRENTZOOMY 201 IA_PR_CURRENTPANX 202 IA_PR_CURRENTPANY 203 IA_PR_MIXVOLUME 204 IA_PR_FRAMESPERSECOND 205 Reserved 206-220 IA_EV_MOUSE EVENT 221 IA_EV_MENU BUTTON EVENT 222 IA_EV_KARAOKE EVENT 223 IA_EV_STILL EVENT 224 IA_EV_CC TEXT EVENT 225 IA_EV_FULLSCREEN 226 Reserved 227-239 DVD-Audio Advanced IA_CMD_HIDDENPLAYGROUP 240 IA_CMD_HIDDENPLAYTRACK 241 IA_CMD_HIDDENPLAYTIME 242 IA_CMD_SELECITEXTLANGUAGE 243 Reserved 244-255 A.1.44 InterActual.Enablesubpicture(n)

Summary

-   -   Enables or disables sub-pictures.

Parameters n If n is 0, then disable Sub-pictures (off) If n is 1, then enable Sub-pictures (on) Signed 1 byte integer

Example

-   -   Disable sub-pictures.     -   InterActual.EnableSubpicture(0)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.1.45 InterActual.SetGPRM(r,x)

Summary

-   -   Manually set the General Parameter Registers.

Parameters r GPRM Register Number from 0 to 15; signed 1 byte integer x Unsigned 2 byte (16-bit) value to store in the GPRM

Example

-   -   Set GPRM 1 to 0x0045     -   InterActual.SetGPRM(1,0x0045)

Notes

-   -   This command and should be used with caution.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Return Values

A.1.46 InterActual.Mute( )

Summary

-   -   Mutes the DVD or CD audio output.

Parameters

-   -   None required

Example

-   -   With a DVD-video in the drive, mute the DVD-Video audio stream     -   InterActual.Mute( )

Notes

-   -   This method acts as a toggle. To un-mute, issue         InterActual.Mute( ) again.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time A.1.47 InterActual.FullScreen(w)

Summary

-   -   Sets the video playback to full screen or in a window.

Parameters w When w = 0, set windowed mode when w = 1, set full screen mode Signed 1 byte integer

Example

-   -   Set to full screen.     -   InterActual.FullScreen(1)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid A.1.48 InterActual.GotoBookmark(b)

Summary

-   -   Continues playback at the bookmark saved for this disc.

Parameters b Signed 1 byte integer ranging from 0-32 Number of the bookmark that is being used for resuming the playback, or if 0 is passed, resume playback using whatever bookmark exists for this disc

Example

-   -   Play from the bookmark (saved in MyBkMk) saved for this disc.     -   InterActual.GotoBookmark(MyBkMk)

Notes

-   -   The bookmarks are assigned a number internally when set. A         GotoBookmark returns to the same position on the disc as when         the bookmark was set (saved). When a bookmark is saved, it will         overwrite any existing bookmark for this disc, should one exist         If all of the bookmarks in memory are used, it will overwrite         the oldest bookmark Because navigating to other HTML pages with         embedded video can interrupt playback such that other bookmarks         can be saved, care should be taken to resume playback using the         desired bookmark See Bookmarks in the appendix for a detailed         layout of bookmarks. If the bookmark number is not known by the         JavaScript, passing a parameter of 0 will use the last bookmark         that was saved for this disc.

See also

-   -   InterActual.SaveBookmark( )

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid −8 IncorrectDisc The bookmark specified is not for this disc A.1.49 InterActual.SaveBookmark( )

Summary

-   -   Saves a bookmark for the current play location for this disc.

Parameters

Return Value JavaScript Number Signed 1 byte integer ranging from 1-32 number of the bookmark that is being saved Number Name Description −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc

Example

-   -   Save a bookmark for this disc and call it MyBkMk.     -   MyBkMk=InterActual.SaveBookmark( )

Notes

-   -   When a bookmark is saved, it will overwrite any existing         bookmark for this disc, should one exist. If all of the         bookmarks in memory are used, it will overwrite the oldest         bookmark. See Bookmarks in the appendix for a detailed layout of         bookmarks.

See also

-   -   GotoBookmark(b)

Media Supported DVD Video DVD Audio CD Audio X X X A.1.50 InterActual.NetConnect( )

Summary

-   -   Establish an Internet connection.

Parameters

-   -   None required

Example

-   -   Open connection.     -   InterActual.NetConnect( )

Media Supported DVD Video DVD Audio CD Audio X X X

Notes

-   -   This command does not block, but when it is used in conjunction         with the Net Event, the code can see the progress of         establishing a connection and respond accordingly.

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −3 NotSupported File type or feature not supported at this time or not possible at this time −7 MemoryErr Not enough memory for operation A.1.51 InterActual.NetDisconnect( )

Summary

-   -   Inform the underlying system that an Internet connection is no         longer required. The system setup parameters will determine         whether to actually disconnect a session or not based on the         system configuration.

Parameters

-   -   None required

Example

-   -   Open connection.     -   InterActual.NetDisconnect( )

Media Supported DVD Video DVD Audio CD Audio X X X

Notes

-   -   This command does not block.

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −3 NotSupported File type or feature not supported at this time or not possible at this time −7 MemoryErr Not enough memory for operation A.1.52 InterActual.SubscribeToEvent(e, s)

Summary

-   -   All events listed in the base API are subscribed to, by default         with the exception of “Info” event, index “21”. Additionally,         all advanced and platform-specific events are not subscribed to         and must be explicitly subscribed to. A program can choose to         subscribe or unsubscribe to an event using this command.

Parameters e Event id, which is the index number as listed in the Event section of this document; it can range from 0-999; Signed 2-byte integer. s Subscription flag where s = 0 means unsubscribe and s = 1 means to subscribe to the event id contained in e; Signed 1 byte integer.

Example

-   -   To subscribe to the Karaoke event:     -   InterActual.SubscribeToEvent(52,1)

Notes

-   -   If an attempt is made to subscribe to an event that is already         subscribed to (for whatever reason), no error will be returned;         rather the state of subscription will not change

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −3 NotSupported File type or feature not supported at this time, in this case the event type is not supported on this platform. −6 ParmRangeErr Parameter out of range or invalid −7 MemoryErr Not enough memory for operation A.2 Properties

Properties can be used to find information about commonly used variables, such as time, title and chapter. They are read-only, by definition. Where it makes sense to set a specific property, there will be an associated command to do so.

All properties must be supported and contain a value within the range specified. If a property doesn't exist or is not supportable at the time, then the property should return the value “not implemented” or “ni” for character or “−1” for numeric values.

InterActual playback devices shall support the following properties.

A2.1 InterActual.ElapsedTime

Summary

-   -   Returns the elapsed time of the current title, or the current         track for CD-DA, in milliseconds.

Return Value

-   -   JavaScript Number Signed 4 byte (32-bit) integer ranging from 0         to 23¹-1

Example

-   -   Query the elapsed time so far.     -   TimeSoFar=InterActual.ElapsedTime

Media Supported DVD Video DVD Audio CD Audio X X X A2.2 InterActual.TotalElapsedTime

Summary

-   -   Returns the total elapsed time, in milliseconds, of the CD-DA         (disc) playing.

Return Value

-   -   JavaScript Number Signed 4 byte (32-bit) integer ranging from 0         to 2³¹-1

Example

-   -   Query the elapsed time of the CD playing.     -   DiscLength=InterActual.TotalElapsedTime

Media Supported DVD Video DVD Audio CD Audio X A2.3 InterActual.TotalTime

Summary

-   -   Returns the total time of current title (in milliseconds). For         CD-DA, it returns the total time for the current disc.

Return Value

-   -   JavaScript Number Signed 4 byte (32-bit) integer ranging from 0         to 2³¹-1

Example

-   -   Query the length of the current title.     -   TitleLength=InterActual.TotalTime

Media Supported DVD Video DVD Audio CD Audio X X X A.2.4 InterActual.TitleNumber

Summary

-   -   Returns the currently playing title number.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-99

Example

-   -   Query the current title number.     -   TitleNum=InterActual.TitleNumber

Media Supported DVD Video DVD Audio CD Audio X A.2.5 InterActual.PGCNumber

Summary

-   -   Returns the currently playing PGC number.

Return Value

-   -   Javascript Number Signed 2 byte integer ranging from “1” to         “2¹⁵-1”

Example

-   -   Query the current PGC number for the current menu or title         space.     -   CurrPGCNum=InterActual.PGCNumber

Media Supported DVD Video DVD Audio CD Audio X X A.2.6 InterActual.ChapterNumber

Summary

-   -   Returns the currently playing chapter number.

Return Value

-   -   JavaScript Number Signed 2 byte integer ranging from 1-999

Example

-   -   Query the current chapter number.     -   CurrChapterNum=InterActual.ChapterNumber

Media Supported DVD Video DVD Audio CD Audio X A.2.7 InterActual.TrackNumber

Summary

-   -   Returns the currently playing track number.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-99

Example

-   -   Query the current track number.     -   FavoriteTrackNum=InterActual.TrackNumber

Media Supported DVD Video DVD Audio CD Audio X X A.2.8 InterActual.PlayState

Summary

-   -   Returns the current play state.

Return Value JavaScript Number Signed 1 byte integer ranging from 0-7 where: 0: Uninitialized 1: Play 2: Pause 3: Stop 4: Scanning Forward 5: Scanning Backward 6: Slow Forward Play 7: Slow Backward Play the values 6 & 7 don't apply to CD-DA

Example

-   -   Query the current play state.     -   State=InterActual.PlayState

Media Supported DVD Video DVD Audio CD Audio X X X A.2.9 InterActual.Domain

Summary

-   -   Returns the current domain.

Return Value JavaScript Number Signed 1 byte integer ranging from 1-8 where: 1: First Play Domain 2: Video Manager Menu Domain 3: Audio Manager Menu Domain 4: Video Title Set Menu Domain 5: Title Domain 6: Title Group Domain 7: Stop State 8: Decoder Shutdown (computer only)

Example

-   -   Query the current domain.     -   currentDom=InterActual.Domain

Media Supported DVD Video DVD Audio CD Audio X X A.2.10 InterActual.AudioNumber

Summary

-   -   Returns the current audio stream/selection number.

Return Value JavaScript Number Signed 1 byte integer DVD-Video:   Number of the Audio streams in the Title   Domain may range from 0 to 7 DVD-Audio:   The Audio selection may be changed to 0 or 1

Example

-   -   Query the current audio stream/selection number.     -   audioStreamNumber=InterActual.AudioNumber

Notes

-   -   For DVD-Audio, only 1 audio stream is available in the DVD-Audio         zone. On a hybrid disc, the DVD-Video zone can have a max of 2         audio streams.

Media Supported DVD Video DVD Audio CD Audio X X A.2.11 InterActual.SubpictureNumber

Summary

-   -   Returns the current sub-picture stream number.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 0-31

Example

-   -   Query the current sub-picture stream number.     -   SubP=InterActual.SubpictureNumber

Notes

-   -   If this property returns a ninety-nine (99), then sub-pictures         are off.

Media Supported DVD Video DVD Audio CD Audio X X A2.12 InterActual.AngleNumber

Summary

-   -   Returns the current video angle.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-9

Example

-   -   Query the current video angle.     -   CurrAngle=InterActual.AngleNumber

Media Supported DVD Video DVD Audio CD Audio X A.2.13 InterActual.ParentalLevel

Summary

-   -   Returns the current parental level.

Return Value JavaScript Number Signed 1 byte integer Parental level ranging from 1-8 where 1 = G 2 = Reserved 3 = PG 4 = PG13 5 = Reserved 6 = R 7 = NC-178 = Reserved

Example

-   -   Query the parental level.     -   CurrPlvl=InterActual.ParentalLevel

Notes

-   -   Upon the start of playback, this property can be tested to avoid         playback of material at a higher level than parents may allow.

Media Supported DVD Video DVD Audio CD Audio X A.2.14 InterActual.ButtonNumber

Summary

-   -   Returns the number of the currently highlighted button.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-36

Example

-   -   Query the number of the currently highlighted button on the         menu.     -   SelectedButton=InterActual.ButtonNumber

Notes

-   -   Up to 36 rectangular buttons can be on the screen (which are         capable of being highlighted). In the case of wide screen         content (with anamorphic, auto-letterbox, or auto pan & scan         modes), only 18 buttons are allowed per screen (when two modes         are used). Only 12 buttons are allowed per screen when all three         modes are used.

Media Supported DVD Video DVD Audio CD Audio X X A.2.15 InterActual.TotalNumAudio

Summary

-   -   Returns the total number of audio streams available for current         title/title group.

Return Value JavaScript Number Signed 1 byte integer DVD-Video: ranging from 0-8; 0 means no audio DVD-Audio: ranging from 0-1

Example

-   -   Query the total number of audio streams in the title/title         group.     -   TotalTracksAudio=InterActual.TotalNumAudio

Notes

-   -   For DVD-Audio, only 1 audio stream is available in the DVD-Audio         zone. On a hybrid disc, the DVD-Video zone can have a max of 2         audio streams.

Media Supported DVD Video DVD Audio CD Audio X X A.2.16 InterActual.TotalTracks

Summary

-   -   Returns the total number of audio tracks available for current         CD-DA disc.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-99

Example

-   -   Query the total number of audio tracks on this CD-DA disc.     -   TotalTracksOnDisc=InterActual.TotalTracks

Media Supported DVD Video DVD Audio CD Audio X A.2.17 InterActual.TotalTitles

Summary

-   -   Returns the total number of titles available for current disc.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-99

Example

-   -   Query the total number of titles on this disc.     -   TotalTitlesOnDisc=InterActual.TotalTitles

Media Supported DVD Video DVD Audio CD Audio X X A.2.18 InterActual.TotalNumSubpicture

Summary

-   -   Returns the number of sub-picture streams currently available.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 0-31; 0         mens none are available

Example

-   -   Query the number of sub-picture streams available.     -   TotalAvailSubP=InterActual.TotalNumSubpicture

Media Supported DVD Video DVD Audio CD Audio X X A.2.19 InterActual.TotalNumAngle

Summary

-   -   Returns the total number of available angles.

Return Value

-   -   JavaScript Number Signed 1 byte integer ranging from 1-9

Example

-   -   Query the total number of available angles.     -   TotalAvailAngles=InterActual.TotalNumAngle

Media Supported DVD Video DVD Audio CD Audio X A.2.20 InterActual.TotalNumButton

Summary

-   -   Returns the total number of buttons on the current menu.

Return Value JavaScript Signed 1 byte integer ranging from 0-36; 0 means none (no Number buttons on this menu; the user must use “next” to advance)

Example

-   -   Query the number of buttons on the current menu.     -   TotalAvailButtons=InterActual.TotalNumButton

Notes

-   -   Up to 36 rectangular buttons can be on the screen (which are         capable of being highlighted). In the case of wide screen         content (with anamorphic, auto-letterbox, or auto pan & scan         modes), only 18 buttons are allowed per screen (when two modes         are used). Only 12 buttons are allowed per screen when all three         modes are used.

Media Supported DVD Video DVD Audio CD Audio X X A.2.21 InterActual.MajorVersion

Summary

-   -   This property returns the platform major version (e.g. if the         API version is 1.03, it will return MajorVersion as “1”). This         field can also be used to determine the parsing of certain bits         in InterActual.SupportedFeatures.

Return Value JavaScript Returns major version unique to each playback system; Number signed 2 byte integer

Example

-   -   Query the major version of InterActual API for the current         device.     -   API_MajorVers=InterActual.MajorVersion     -   If API_MajorVers>1 . . .

Media Supported DVD Video DVD Audio CD Audio X X X A.2.22 InterActual.MinorVersion

Summary

-   -   This property returns the platform minor version (e.g. if the         version is 1.03, it will return “03” for MinorVersion). This         field can also be used to determine the parsing of certain bits         in InterActual.SupportedFeatures.

Return Value

-   -   Java Script Number Returns minor version unique to each playback         system; signed 2 byte integer.

There are 2 digits to the minor version and they are both important. Since the property returns a number, this is how the number must be interpreted by any JavaScript programmer. Return Value Version  0 x.00  1 x.01  2 x.02  3 x.03  4 x.04  5 x.05  6 x.06  7 x.07  8 x.08  9 x.09 10 x.10 11 x.11 . . . . . . 30 x.30 . . . and so forth.

Example

-   -   Query the minor version of InterActual API for the current         device.     -   API_MinorVers=InterActual.MinorVersion     -   If API_MinorVers>5 . . .

Media Supported DVD Video DVD Audio CD Audio X X X A.2.23 InterActual.PlayerMode

Summary

-   -   This property returns the default mode for playback of discs as         configured by the system's configuration application.     -   If this is InterActual mode, then the system will play it as         authored launching INDEX.HTM (see the API Directory Structure         appendix for details). If the user specifies that the system         should play discs in Play mode, then this will override how the         disc was authored and always start in linear movie playback.

Return Value Char string Returns a signed 32 byte value of the player mode in characters, either “Play” or “InterActual”

Example

-   -   Query the player mode of InterActual API for the current device.     -   mode=InterActual.PlayerMode

Media Supported DVD Video DVD Audio CD Audio X X X A.2.24 InterActual.MaxFast

Summary

-   -   Returns the maximum number of fast speeds.

Return Value JavaScript Number Signed 1 byte integer Number of fast speeds ranging from 0-99

Example

-   -   Get the total number of fast speeds supported.     -   x=InterActual.MaxFast

Media Supported DVD Video DVD Audio CD Audio X X A.2.25 InterActual.MaxFastReverse

Summary

-   -   Returns the maximum number of reverse fast speeds.

Return Value JavaScript Number Signed 1 byte integer Number of reverse fast speeds ranging from 0-99

Example

-   -   Get the total number of reverse fast speeds supported.     -   x=InterActual.MaxFastReverse

Media Supported DVD Video DVD Audio CD Audio X X A.2.26 InterActual.MediaID

Summary

-   -   Returns a unique identifier for the current disc side.

Return Value Char A 128-bit unique media (title) identifier that is translated into a hex string character string in the same fashion as a Windows GUID, e.g. “A0739DE5571F11D2A0310060977F760C”.

-   -   This pattern is 32 hexadecimal characters.

Example

-   -   Query for the unique disc identifier     -   discID=InterActual.MediaID

Media Supported DVD Video DVD Audio CD Audio X X X A.2.27 InterActual.DiscType

Summary

-   -   The DiscType property returns the disc format to the         application.

Return Value JavaScript Signed 1 byte integer 0-255. A disc may be only one of the Number following types: 0: drive is empty or in an unknown state 1: CD-Audio 2: DVD-Video only 3: DVD-Video and CD-DA 4: DVD-Audio only 5: DVD-Audio and CD-DA 6: DVD-Audio and DVD-Video 7: DVD-Audio and DVD-Video & CD-DA 8-255: reserved Note: some of these hybrid combinations may not exist in the market at this time.

Example

-   -   Query the disc media type:     -   discInfo=InterActual.DiscType

Media Supported DVD Video DVD Audio CD Audio X X X A.2.28 InterActual.Bookmark

Summary

-   -   Returns the number of the bookmark for the current disc if it         has been saved.

Return Value JavaScript Number Signed 1 byte integer ranging from 1-32 will return 0 if there is no bookmark saved.

Example

Query the bookmark for the current disc if there is one. CurBkMk = InterActual.Bookmark If (CurBkMk == MyBkMk)  // test to see if its mine  InterActual.GotoBookmark

Media Supported DVD Video DVD Audio CD Audio X X X A.2.29 InterActual.ROMType

Summary

-   -   The ROMType property queries the type of ROM data that is         contained on the DVD (e.g. the format of the HTML tags and         JavaScipt calls).

Return Value JavaScript Signed 1 byte integer 0-255. The ROM type may be only one Number of the following types: 0 = No DVD-ROM data present 1 = Unknown DVD-ROM material present 2 = PCFriendly 3 = InterActual API 4 = InterActual Player Only (computer only) 5-255 = reserved

Example

-   -   Query the ROM type:     -   ROMInfo=InterActual.ROMType

Notes

-   -   The mechanism for setting these bits is to be as follows:     -   For DVD-ROM material test to see if there is any file in the         main directory other than those in the VIDEO_TS and AUDIO_TS and         JACKET_P directories.     -   For PCFriendly, test to see if the DISC.ID file is present in         the root directory, and the section heading [PCFriendly] exists.     -   For InterActual compatibility, test to see if the         COMMANDINDEX.HTM file is present (or INDEXI.HTM—see the API         Directory Structure appendix) and read the HTML meta-data to         determine the minimum required API version for the ROM content         (see the Appendix describing Meta data information).     -   For InterActual Player Only, test to see if the DISC.ID file is         present in the root directory, and the section heading         [InterActual] exists, then be sure there are no files named         INDEX*.HTM in the COMMON directory.     -   Other data and programs may be on the discs as well, for         instance, a Macintosh PCFriendly disc may contain platform         specific code. It will be classified as PCFriendly if it meets         the requirements above.

Media Supported DVD Video DVD Audio CD Audio X X X A.2.30 InterActual.InternetStatus

Summary

-   -   Returns the current Internet connection status.     -   The list of return values is exhaustive to allow for a fine         granularity of possibilities across the various platforms         supported (computers, game machines and set top players). Hence,         a device could be built with no connectivity option whatsoever,         only rendering HTML and JavaScript from local sources, e.g. the         disc ROM. Additionally, a device may offer an after-sale option         to add connectivity through a network module or MODEM Return         value “1” would cover this situation where the system is capable         of connecting, but the option is not installed. Return value “2”         would cover the situation where a network session (PSTN or LAN,         etc) is not currently established. A “3” would be returned while         a connection is being established or if a connection has dropped         is being reestablished by the system.     -   Additionally, some platforms may have no reliable method to         establish the connection speed and return only a “4”.

Return Value JavaScript Signed 1 byte integer Connection status as follows: Number  0 = no connectivity option available, ever  1 = connectivity option not currently installed  2 = connectivity option installed, not online (offline)  3 = connectivity option installed, status unknown 4 = online, speed unknown 10 = up to 28K 11 = up to 56K 12 = up to 128K 13 = up to 1.5M 14 = up to 10M 15 = up to 100M 16 = greater than 100M others reserved

Example

-   -   Query the Internet status.     -   ConnectStatus=InterActual.InternetStatus

Media Supported DVD Video DVD Audio CD Audio X X X A.2.31 InterActual.FullScreenMode

Summary

-   -   Returns the current state of full screen mode.

Return Value JavaScript Number Signed 1 byte integer Status as follows: 0 = not in full screen mode 1 = in full screen mode

Example

-   -   Query the full screen mode status.     -   FullScreenModeStatus=InterActual.FullScreenMode

Media Supported DVD Video DVD Audio CD Audio X X X A.3 Events

Events are integral to synchronizing DVD-Video with other media With these events, web pages can be synchronized with the audio or video. For example, each ChapterEvent (start of new chapter) can trigger an HTML storyboard that corresponds to the movie. Time based events can be used to coordinate advertising messages in HTML while the video is playing: when James Bond is driving his BMW, an appropriate web page (BMW or auto sales site) can automatically be displayed at the same time.

The value of events is that these external media do NOT have to be embedded or even be known at the time the DVD-Video is authored. This flexibility keeps DVD-Video authoring on schedule and greatly minimizes the authoring costs while adding valuable and unique features to each disc.

Events can be used by the calling application (HTML/JavaScript, C++, or other) to receive notification of DVD playback status. There is an EventHandler function required which will switch on the event type index (see below) and call the appropriate function. If a platform does not support an event, then an error code must be returned when its use is attempted. Here is an example of an event handler in JavaScript: <OBJECT ID=“InterActual”   CLASSID=“clsid:A0739DE5-571F-11D2-A0310060977F760C”   BORDER=“1” WIDTH=50% HEIGHT=60% > </OBJECT> <SCRIPT LANGUAGE=“JavaScript”> function EventHandler(index,parm1,parm2,parm3) {  switch(index)  {   case 0://reserved       break;   case 1://title event       TitleEvent(parm1);       break;   case 2://chapter event       ChapterEvent(parm1);       break;   case 3://PGC event       PGCEvent(parm1);       break;   case 4://Time event       TimeEvent(parm1,parm2);       break;  // etc.. - see index list below   default:       UnknownEvent(parm1, parm2, parm3);       break;  } } // The following is the private function that will take // parameters 1 and 2 which are elapsed and total time. // The name is up to the author, but must match the case // statement in the Event Handler routine. function TimeEvent(elapsedTime, totalTime) { //Synchronize my graphic at 15 seconds  if (elapsedTime == 15000)  document.images[0].src = “bmw.gif” } </SCRIPT>

The following table lists the event indices that will be generated by the browser. There is a skip in the enumeration for advanced events and platform-specific events. We have reserved unique events for specific platforms like the PC or Macintosh.

There is a command enabling subscribing to events or unsubscribing to events (see Inteructual.SubscribeToEvent listed in the command section).

-   -   Note: By default, all events listed in the base API are         subscribed to with the exception of         -   The Info event (index 21)         -   The RC Button event (index 22) and         -   The Net event (index 24).     -   In addition to these events, all advanced and platform-specific         events are not subscribed to and must be explicitly subscribed         to.

The table lists event the index and which parameter is returned. The details for each event type and associated parameters follow, however TitleGroup and Slide are described in the DVD-Audio section of this document, as they are specific to DVD-Audio only. TABLE 6 Event Indices Index value Parm1 Parm2 Parm3 Event Type Reserved 0 Title 1 titleNum Chapter 2 chapterNum PGC 3 pgcNum Time 4 elapsedTime totalTime TrackTime 5 trackNum elapsedTime totalTime TitleGroup 6 groupNum Track 7 trackNum Slide 8 slideNum Angle 9 angleNum State 10 stateNum Speed 11 speedNum UOPs 12 uopFields Domain 13 domainNum Audio 14 audioNum Subpicture 15 subpictureNum Parental 16 parentalNum Region 17 regionNum Eject 18 Insert 19 GPRM 20 regNum regVal Info 21 RCButton 22 rcButton NumAngles 23 totalNum Net 24 NetStateNum Reserved 25 Advanced Events Mouse 50 MouseButton x y Menu Button 51 MenuButton Karaoke 52 KaraokeNum Still 53 State CC Text 54 CcText Platform Specific PC 100-110 FullScreen 100 Transition Macintosh 111-120 Linux 121-130 Nuon 131-140 Nintendo 141-150 Sega 151-160 Sony 161-170 X Box 171-180 Reserved 181-190 Reserved 191-200

The following list of InterActual API events must be supported and the number and meaning of the parameters they will receive is detailed. For example, the title event is index number 1 and a private function (such as TitleEvent) will receive one parameter (the others will be null) and it will be the new title number (see below for an explanation).

Sample private event functions:

A.3.1 Title Event

Summary

-   -   Called when the title changes. Returns the new title number in         titleNum.

Return Parameters titleNum Signed 1 byte integer ranging from 1-99

Example

Trigger an event when playback reaches Title 3: <SCRIPT LANGUAGE=“JavaScript”> function TitleEvent(titleNum) If (titleNum == 3) {   // Perform function once Title 3 has been trapped } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.2 Chapter Event

Summary

-   -   Called when the chapter changes. Returns the new chapter number         in chapterNum.

Return parameters chapterNum Signed 2 byte integer Chapter index ranging from 1-99 for One_Sequential_PGC_Title Chapter index ranging from 1-999 for Multi_PGC_Title

Example

Trigger an event when playback reaches chapter 2 of Title 1: <SCRIPT LANGUAGE=“JavaScript”> function ChapterEvent(chapterNum) If (chapterNum == 2) {   // Trigger event once in Chapter 2 } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X A.3.3 PGC Event

Summary

-   -   Called when the PGC changes. Returns the new PGC number in         PGCNum.

Return parameters

-   -   PGCNu Signed 2 byte integer ranging from 1 to 2¹⁵-1 m

Example

Trigger an event when playback reaches PGC 2 of Title 1: <SCRIPT LANGUAGE=“JavaScript”> function PGCEvent(PGCNum) If (PGCNum == 2) {   // Trigger event once in PGC 2 } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X A.3.4 Time Event

Summary

-   -   Called on a time change. Returns the elapsed time and total         time, both in milliseconds.

Return parameters elapsedTime Elapsed time, signed 4 byte (32-bit) integer ranging from 1 to 2³¹ − 1 totalTime Total time, signed 4 byte (32-bit) integer ranging from 1 to 2³¹ − 1 (˜2²⁴ is the practical limit)

Example

Trigger the display of a graphic when playback reaches 15 seconds of Title 1: <SCRIPT LANGUAGE=“JavaScript”> function TimeEvent(elapsedTime, totalTime) if (elapsedTime == 15000) {   document.images[0].src = “bmw.gif”    //Display my graphic at 15 seconds } </SCRIPT>

Notes

-   -   This event should trigger approximately every 900 milliseconds         while in play mode.

Media Supported DVD Video DVD Audio CD Audio X X X A.3.5 Track Time Event

Summary

-   -   Called on a time change within the context of a CD track.         Returns the elapsed time and total time (both in milliseconds).

Return parameters trackNum Track number associated with this time event signed 1 byte integer ranging 1-99 elapsedTime Elapsed time into track, signed 4 byte (32-bit) integer ranging from 1 to 2³¹ − 1 totalTime Total time into track, signed 4 byte (32-bit) integer ranging from 1 to 2³¹ − 1 (˜2²⁴ is the practical limit)

Example

Trigger the display of a graphic when playback reaches 15 seconds into CD track 4: <SCRIPT LANGUAGE=“JavaScript”> function TrackTimeEvent(trackNum, elapsedTime, totalTime) if (trackNum == 4) && (elapsedTime == 15000) {   document.images[0].src = “PhilKeaggy.gif”    //Display graphic at 15 seconds } </SCRIPT>

Notes

-   -   This event should trigger approximately every 900 milliseconds         while in play mode.

Media Supported DVD Video DVD Audio CD Audio X A.3.6 Track Event

Summary

-   -   Called when the track changes. Returns the new track number in         trackNum.

Return parameters trackNum Signed 1 byte integer ranging from 1-99

Example

Trigger an event when playback reaches track 5: <SCRIPT LANGUAGE=“JavaScript”> function TrackEvent(trackNum) If (trackNum == 5) {   // Trigger event once in Track 5 } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.7 Angle Event

Summary

-   -   Called on angle change. Returns the new angle number in         angleNum.

Return parameters angleNum New angle number, signed 1 byte integer ranging from 1-9

Example

Trigger an event when angle number 3 is selected: <SCRIPT LANGUAGE=“JavaScript”> function AngleEvent(angleNum)  if (angleNum == 3) {   // Trigger event once angle 3 is reached  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X A.3.8 State Event

Summary

-   -   Called on state change, e.g. when the play state changes from         play to pause.

Return parameters stateNum State number, signed 1 byte integer ranging from 0-7 0: None 1: Play 2: Pause 3: Stop 4: Scanning Forward 5: Scanning Backward 6: Slow Forward Play 7: Slow Backward Play

Example

Trigger an event when playback is paused: <SCRIPT LANGUAGE=“JavaScript”> function StateEvent(stateNum)  if (stateNum == 2) {   // Trigger event base on pause  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.9 Speed Event

Summary

-   -   Called on speed change, e.g. when changed from play to scanning.         Returns the new speed information.

Return parameters speedNum Speed number, signed 1 byte integer ranging from 1-99

Example

Trigger an event when speed is changed: <SCRIPT LANGUAGE=“JavaScript”> function SpeedEvent(speedNum)  if (speedNum == 8) {   // Trigger event upon speed transition to 8x  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.10 UOP Event

Summary

-   -   Called when any UOP changes. Returns the new UOP fields.

Return parameters uopFields UOP fields; signed 4 byte (32-bit) number (see the command InterActual.ValidUOP for the list)

Example

Trigger an event when PlayTime UOP is prohibited: <SCRIPT LANGUAGE=“JavaScript”> function UOPEvent(uopFields) if (uopFields & 0x00000001) {     // Display disabled state of   // PlayTime graphic since playback is prohibited  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X A.3.11 Domain Event

Summary

-   -   Called when the domain changes. Returns the new domain number.

Return parameters domainNum Signed 1 byte integer Domain number ranging from 1-8: 1: First Play Domain 2: Video Manager Menu Domain 3: Audio Manager Menu Domain 4: Video Title Set Menu Domain 5: Title Domain 6: Title Group Domain 7: Stop State 8: Decoder Shutdown (computer only)

Example

Trigger an event when domain changes to Title domain: <SCRIPT LANGUAGE=“JavaScript”> function DomainEvent(domainNum)  if (domainNum == 5) {   // Trigger event on title domain change  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.12 Audio Event

Summary

-   -   Called when there is a change in the audio stream number.         Returns the new audio number in audioNum.

Return parameters audioNum Audio stream number, signed 1 byte integer ranging from 0-7

Example

Trigger an event when audio stream changes: <SCRIPT LANGUAGE=“JavaScript”> function AudioEvent(audioNum)  if (audioNum == 4) {   // Trigger event based on audio stream change to stream 4  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.13 Subpicture Event

Summary

-   -   Called when there is a change in sub-pictures. Returns the new         sub-picture number in subpictureNum

Return parameters subpictureNum Sub-picture number, signed 1 byte integer ranging from 0-31 If the value returned is 99, then this means sub- pictures were turned off.

Example

Trigger an event when sub-picture stream changes: <SCRIPT LANGUAGE=“JavaScript”> function SubpictureEvent(subpictureNum)  if (subpictureNum == 2) {   // Trigger event based on sub-picture change to stream 2  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.14 Parental Event

Summary

-   -   Called when parental control changes.

Return parameters

-   -   parentalNum Parental level number, signed 1 byte integer ranging         from 1-8

Example

Set the ParentalEvent and test when it triggers: <SCRIPT LANGUAGE=“JavaScript”> function ParentalEvent(parentalNum)  if (parentalNum > 3) {   // do stuff here...  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.15 Region Event

Summary

-   -   Called when there is a mismatch in the region of the device and         disc.

Return parameters regionNum Region code of the disc; signed 1 byte integer 0x00 = unknown disc region 0x01 = Region 1 0x02 = Region 2 0x04 = Region 3 0x08 = Region 4 0x10 = Region 5 0x20 = Region 6 0x40 = Reserved 0x80 = Reserved for sign

Example

Trigger an event when a region mismatch occurs: <SCRIPT LANGUAGE=“JavaScript”> function RegionEvent(regionNum)  if (regionNum == 01) {   // Trigger event when disc is NA; SPRM20 has system region  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X X A.3.16 EjectEvent

Summary

-   -   Called when the disc is ejected from the device.

Return parameters

-   -   None

Example

Trigger an event when the disc is ejected: <SCRIPT LANGUAGE=“JavaScript”> function EjectEvent( )   // Trigger event based on disc ejection </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X X A.3.17 Insert Event

Summary

-   -   Called when a disc is inserted

Return parameters

-   -   None

Example

Trigger an event when the disc is inserted: <SCRIPT LANGUAGE=“JavaScript”> function InsertEvent( )   // Trigger event based on disc insertion </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X X A.3.18 GPRM Event

Summary

-   -   Called when a GPRM changes. Returns register number and register         contents.

Return parameters regNum GPRM Register Number signed 1 byte value ranging from 0 to 15 regVal New value of GPRM; Unsigned 2 byte (16-bit) value

Example

Trigger an event when GPRM(15) changes: <SCRIPT LANGUAGE=“JavaScript”> function GPRMEvent(regnum, regVal) if ( (regNum == 15) && (regVal == 10) ) {   // Trigger event based on GPRM(15) = 10 } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X A.3.19 Info Event

Summary

-   -   Called when the user requests information. This event will be         triggered by a button on a computer window or a button on the         remote control (for a set top player) being pressed. The content         (namely, the JavaScript private function for the title) will         determine the course of action.

Return parameters

-   -   none

Example

Trigger an information request event because the RC button was pressed. In this case, if the title is 23, we will load a web page. <SCRIPT LANGUAGE=“JavaScript”> function InfoLinkEvent( ) If InterActual.TitleNum == 23 { //...load page associated with title 23 } </SCRIPT>

Notes

-   -   This event type, by default, is not subscribed to. It must be         explicitly subscribed to using SubscribeToEvent.

Media Supported DVD Video DVD Audio CD Audio X X A.3.20 RC Button Event

Summary

-   -   Called when a button on the remote control (RC) has been         pressed. Returns the button number from the list below.

Return parameters Button number, rcButton signed 1 byte integer ranging from 1-99 1: Stop 2: Pause 3: Play 4: Previous Chapter/Track 5: Next Chapter/Track 6: Fast Forward 7: Fast Reverse 8: Scan/Slow forward 9: Scan/Slow reverse 10: DVD Menu 11: Title 12: Audio 13: Angle 14: Subtitle or Subpicture 15: Up arrow 16: Down arrow 17: Left arrow 18: Right arrow 19: Select 20: PlayHandler (for computer control; not sent during playback) 21: FullScreen

Example

Trigger an event based on button event. <SCRIPT LANGUAGE=“JavaScript”> function RCButtonEvent(rcButton)  if (rcButton == 5){   // Trigger event based on Next button pressed  } </SCRIPT>

Notes

-   -   This event type, by default, is not subscribed to. It must be         explicitly subscribed to using SubscribeToEvent.

Media Supported DVD Video DVD Audio CD Audio X X A.3.21 Number of Angles Event

Summary

Called when the total number of angles has changed. Returns the new total number of angles in totalNum. totalNum Total number of angles available, signed 1 byte integer ranging from 1-9

Example

Trigger an event when the total number of angles is greater than 1: <SCRIPT LANGUAGE=“JavaScript”> function NumAnglesEvent(totalNum)  if (totalNum > 1) {   // Trigger when multiple angles are available  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X A.3.22 Net Event

Summary

-   -   Called on state change of the network connectivity.

Return parameters NetStateNum State number, signed 1 byte integer ranging from 0-4 4: Initializing the network interface or MODEM 3: Waiting for dial-tone or signal 2: Dialing or connecting 1: Logging in to service 0: Connected

Example

After subscribing to this event and calling the NetConnect( ) interface, this event will trigger as the connection is being established: <SCRIPT LANGUAGE=“JavaScript”> function NetEvent(NetStateNum) If (NetStateNum == 0)  {     // Load page...   } </SCRIPT>

Notes

-   -   This event type, by default, is not subscribed to. It must be         explicitly subscribed to using SubscribeToEvent.

Media Supported DVD Video DVD Audio CD Audio X X X A.4 Interface Applicability

The following matrix depicts the applicability of each component of the interface (commands, properties and events) depending upon the state of the system. An “X” indicates that the entity is executable in this state if the user operations (UOP bits) allow it; these bits are set by the disc content itself.

Stop state means no specific title is selected and on computers, the DVD navigator is not instantiated.

File open means the state reached when calling the advanced API “Open” command with a filename as the argument. In other words, the DVD navigator is instantiated and a file, not a DVD title, has been selected. Hence, the DVD navigation features are not available.

If the JavaScript calls InterActual.Open(“DVDVideo”) you will automatically transition to the Play state because First PGC will be played. No Disc Fileopen Stop Play Menu BASIC INTERACTUAL API COMMANDS InterActual.Play X X InterActual.PlayTitle X X X InterActual.PlayChapter X X X InterActual.PlayChapterAutoStop InterActual.PlayTime X X X InterActual.PlayTimeAutoStop InterActual.PlayTitleGroup X X X InterActual.PlayTrack X X X InterActual.SearchChapter X X InterActual.SearchTime X X InterActual.SearchTrack X X X InterActual.TotalNumChapters X InterActual.NextPG X X InterActual.PrevPG X X InterActual.GoUp X InterActual.NextTrack X InterActual.PrevTrack X InterActual.TotalTrackTime X InterActual.NextSlide X InterActual.PrevSlide X InterActual.Pause X InterActual.Stop X X InterActual.FastForward X InterActual.Rewind X InterActual.Menu X X X InterActual.Resume X? X InterActual.StillOff X X InterActual.SelectUpButton X X InterActual.SelectDownButton X X InterActual.SelectLeftButton X X InterActual.SelectRightButton X X InterActual.SelectButtonAndActivate X X InterActual.ActivateButton X X InterActual.SelectAudio X X? InterActual.SelectSubpicture X X? InterActual.SelectAngle X X? InterActual.SelectParentalLevel X X InterActual.AudioLanguage X X X InterActual.AudioLanguageExtension X X X InterActual.SubpictureLanguage X X X InterActual.SubpictureLanguageExtension X X X InterActual.GetGPRM X X X InterActual.GetSPRM X X X InterActual.ValidUOP X X X InterActual.GetBCAField X X X InterActual.SupportedFeatures X X X X X InterActual.EnableSubpicture X X InterActual.SetGPRM X X InterActual.Mute X X X X X InterActual.FullScreen X X InterActual.GotoBookmark X X X InterActual.SaveBookmark ? X X InterActual.NetConnect X X X X X InterActual.NetDisconnect X X X X X InterActual.SubscribeToEvent X X X X X PROPERTIES InterActual.ElapsedTime X X InterActual.TotalElapsedTime X InterActual.TotalTime X X InterActual.TitleNumber X InterActual.PGCNumber X InterActual.ChapterNumber X InterActual.TitleGroupNumber X InterActual.TrackNumber X InterActual.SlideNumber X InterActual.PlayState X X X InterActual.Domain X X X InterActual.AudioNumber X InterActual.SubpictureNumber X InterActual.AngleNumber X InterActual.ParentalLevel X InterActual.ButtonNumber X X InterActual.TotalNumAudio X InterActual.TotalTracks X InterActual.TotalTitles X X InterActual.TotalNumSubpicture X InterActual.TotalNumAngle X InterActual.TotalNumButton X X InterActual.MajorVersion X X X X X InterActual.MinorVersion X X X X X InterActual.PlayerMode X X X X X InterActual.MaxFast X X InterActual.MaxFastReverse X X InterActual.MediaID X X X InterActual.DiscType X X X X InterActual.Bookmark X X X InterActual.ROMType X X X InterActual.InternetStatus X X X X InterActual.FullScreenMode X X EVENTS Title Event X Chapter Event X PGC Event X Time Event X Track Time Event X Title Group Event X Track Event X Slide Event X Angle Event X State Event X X X Speed Event X UOP Event X X X Domain Event X X X Audio Event X Subpicture Event X Parental Event X Region Event X Eject Event X X X Insert Event X GPRM Event X X Info Event X X X X RC Button Event X X X X X Number of Angles Event X Note: For the RC Button Event, the subtype of PlayHandler (20) will not be sent during playback (Play state or title domain) so that it can be used for resume functionality. B The DVD-Audio Specific Interface B.1 Commands B.1.1 InterActual.PlayTitleGroup(g)

Summary

-   -   Start playback of the specified title group number.

Parameters g Title group number ranging from 1-9 (within current Volume); signed 1 byte integer

Example

-   -   Start playing the 3^(rd) title group.     -   InterActual.PlayTitleGroup(3)

Notes

-   -   This method shall not be used for playing a Hidden Group. The         method InterActual.HiddenPlayGroup( ) shall be used instead

See also

-   -   InterActual.PlayTrack(g,t)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −3 NotSupported File type or feature not supported at this time −2 UOPNotAllowed Operation not allowed by current UOP fields −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid B.1.2 InterActual.NextSlide( )

Summary

-   -   Presents the next visual display/slide in the display list to         the user.

Parameters

-   -   None required

Example

-   -   Step to the next slide on a DVD-Audio disc.     -   InterActual.NextSlide( )

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc B.1.3 InterActual.PrevSlide( )

Summary

-   -   Presents the previous visual display/slide in the display list         to the user.

Parameters

-   -   None required

Example

-   -   Display previous slide in a slide presentation on a DVD-Audio         disc.     -   InterActual.PrevSlide( )

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc B.2 Properties B.2.1 InterActual.TitleGroupNumber

Summary

-   -   Returns the currently playing title group number.

Return Value JavaScript Number Signed 1 byte integer ranging from 1-9

Example

-   -   Query the current title group number.     -   TitleGrpNum=InterActual.TitleGroupNumber

Media Supported DVD Video DVD Audio CD Audio X B.2.2 InterActual.SlideNumber

Summary

-   -   Returns the currently playing slide/display number.

Return Value JavaScript Number Signed 1 byte integer ranging from 1-99

Example

-   -   Query the current slide/display number.     -   CurrSlideNumber=InterActual.SlideNumber

Media Supported DVD Video DVD Audio CD Audio X B.3 Events B.3.1 Title Group Event

Summary

Called when the title group changes. Returns the new title group number in groupNum Return parameters groupNum Signed 1 byte integer ranging from 1-9

Example

Trigger an event when playback reaches Title Group 5: <SCRIPT LANGUAGE=“JavaScript”> function TitleGroupEvent(groupNum) If (groupNum == 5) {   // Trigger event once in Title Group 5 } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X B.3.2 Slide Event

Summary

-   -   Called when the slide/display list changes. Returns the new         slide number in slideNum.

Return parameters slideNum Slide number, signed 1 byte integer ranging from 1-99

Example

Trigger an event when slide number 13 is reached: <SCRIPT LANGUAGE=“JavaScript”> function SlideEvent(slideNum)  if (slideNum == 13) {     // Trigger event once on Slide 13  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X B.4 Advanced Commands B.4.1 InterActual.HiddenPlayGroup(x)

Summary

-   -   Play hidden group if the 4 digit key number is entered properly.

Parameters X Four digit key number; signed 2 byte integer ranging from 0000-9999

Example

-   -   Play the hidden group, using the key number 1234.     -   InterActual.HiddenPlayGroup(1234)

See also

-   -   InterActual.HiddenPlayTrack(t,x)     -   InterActual.HiddenPlayTime(h,m,s,x)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid B.4.2 InterActual.HiddenPlayTrack(t,x)

Summary

-   -   Play the desired hidden or locked track within the hidden group         specified

Parameters t Track number ranging from 1-99; signed 1 byte integer x Four digit key number; signed 2 byte integer ranging from 0000-9999

Example

-   -   Play the 5^(th) track of the hidden group, using the key number         1234.

InterActual.HiddenPlayTrack(5,1234)

See also

-   -   InterActual.HiddenPlayGroup(x)     -   InterActual.HiddenPlayTime(h,m,s,x)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid B.4.3 InterActual.HiddenPlayTime(h,m,s,x)

Summary

-   -   This command plays from specific time within the Hidden Group.

Parameters h Hours, integer ranging from 00-23; signed 1 byte integer m Minutes, integer ranging from 00-59; signed 1 byte integer s Seconds, integer ranging from 00-59; signed 1 byte integer x Four digit key number; signed 2 byte integer ranging from 0000-9999

Example

-   -   Play starting at 2 minutes in within the Hidden Group, using the         key number 1234.     -   InterActual.HiddenPlayTime(0,2,0,1234)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid B.4.4 InterActual.SelectTextLanguage(n)

Summary

-   -   Selects the language for the Audio Text Data.

Parameters n Audio text language code; shall adhere ISO-639. See the language codes section in the appendix; Unsigned 2 byte char

Example

-   -   Set the audio text language to English, which is “en”.     -   InterActual.SelectTextLanguage(“en”)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C Advanced InterActual API

The interface described in this appendix are not required, however they can be implemented and an InterActual disc can interrogate the system using the SupportFeatures command to determine if the current device supports them.

C.1 Commands

C.1.1 InterActual.Open(filename|type)

Summary

-   -   Opens specified file name.

Parameters filename Char string with file name (maximum of 256 chars) type Char string as follows (max of 8 chars) “DVDVideo” “DVDAudio” “CDAudio”

Example

-   -   Open the DVD Video File for Playback     -   InterActual.Open(“d:\\video_ts\\video_ts.ifo”)     -   InterActual.Open(“DVDVideo”)

Notes

-   -   Opening of VOB files and MPEG files are optional, but suggested.         Other file types are advanced features. An open file can be         played, paused, stopped; fast-forward and rewind are not         available.

Stopping causes the file pointer to be reset to the start of the file.

Requires

-   -   Currently, this command is only available on a computer         platform.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −4 FileNotFound File not found −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C.1.2 InterActual.Slow(x)

Summary

-   -   Play the current DVD at speed x where the x=2 is for ½ speed.

Parameters x x can range from 2-99; signed 1 byte integer

Example

-   -   Play the current DVD at ¼ the normal speed.     -   InterActual.Slow(4)

Notes

-   -   Some players may only allow values of 2,4, 8, 16, and 32. If         Slow is supported a speed of ½ is required Other speeds may also         be supported; decreasing powers of two are recommended although         any value from 2 to 99 is allowed (integer reciprocal values are         used for the speeds, such as 2 for ½ and 4 for ¼, etc).     -   If this command is used with a value not in the list, then the         underlying software will approximate to the nearest available         value (for instance 3 is specified and 4 is chosen) rather than         return with an error code.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C.1.3 InterActual.Step(n)

Summary

-   -   This command steps playback of the DVD forward n frames.

Parameters n n can range from 1-30; signed 1 byte integer

Example

-   -   Step playback of the DVD forward 1 frame at a time.

InterActual.Step(1)

Notes

-   -   Supported Features should be checked first to determine if         capability is supported.

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C.1.4 InterActual.SlowReverse(x)

Summary

-   -   Play the current DVD at x speed in reverse (x=2 for ½ speed).

Parameters x x can range from 2-99; signed 1 byte integer

Example

-   -   Play the current DVD in reverse at ½ the normal playback speed.     -   InterActual.SlowReverse(2)

Notes

-   -   Supported Features should be checked first to determine if         capability is supported. See note on Slow for recommendations.     -   Some players will only allow values such as 2, 4, 8, 16, etc. If         this command is used with a value not in the list, then the         underlying software will approximate to the nearest available         value (for instance 3 is specified and 4 is chosen) rather than         return with an error code.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C.1.5 InterActual.Zoom(x,y)

Summary

-   -   This command will zoom, or scale, by a percentage factor of x         (horizontal) and y (vertical).

Parameters x Unsigned 4 byte (32-bit), 100 times the percentage. Defaults to a value of 10000 meaning 100%. y Unsigned 4 byte (32-bit), 100 times the percentage. Defaults to a value of 10000 meaning 100%.

Example

-   -   Zoom to 200% maintaining the same aspect ratio.     -   InterActual.Zoom(20000, 20000)

Notes

-   -   Zoom parameters are based on a percentage, so integer values of         10000 and 10000 (x and y) indicate 100% of normal full screen         display with no zoom. Normally the x and y scale factors should         be the same to maintain a correct aspect ratio. When zooming to         a value greater than 100%, by default, the center point of the         image remains on the center of the display. Individual players         may support various zoom ranges, but 25% to 400% is recommended         (2500<x,y<40000).     -   Panning allows moving the center point of the portion of the         image to be displayed. These x and y pan parameters are provided         as a percentage of the display from −50% to +50% using integer         values from −5000 to +5000. (This is done so that the         differences between NTSC and PAL do not have to be calculated in         pixels. Additionally, it may also be possible to use the same         HTML code for handling 4:3 and 16:9 as well.) If the pan         parameters would cause the display to pan off the edge of the         video, then the platform software shall only set that panning         parameter to the largest or smallest value that keeps the video         in the display area.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid −7 MemoryErr Not enough memory for operation C1.6 InterActual.Pan(x,y)

Summary

-   -   This command will set the center point of the zoomed display to         x,y coordinates based on the percentage of normal content full         screen display.

Parameters x Unsigned 4 byte (32-bit), 100 times the percentage. Defaults to a value of 0 y Unsigned 4 byte (32-bit), 100 times the percentage. Defaults to a value of 0.

Example

-   -   Set the center point to −10%, 10%.     -   InterActual.Pan(−1000, 1000)

Notes

-   -   Panning allows moving the center point of the portion of the         image to be displayed. These x and y pan parameters are provided         as a percentage of the display from −50% to +50% using integer         values from −5000 to +5000. (This is done so that the         differences between NTSC and PAL do not have to be calculated in         pixels. Additionally, it may also be possible to use the same         HTML code for handling 4:3 and 16:9 as well.) If the pan         parameters would cause the display to pan off the edge of the         video, then the platform software shall only set that panning         parameter to the largest or smallest value that keeps the video         in the display area.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid −7 MemoryErr Not enough memory for operation C.1.7 InterActual.EnableCCText(n)

Summary

-   -   Enables or disables closed captioning.

Parameters n If n is 0, then disable closed captioning (off) If n is 1, then enable closed captioning (on) Signed 1 byte integer

Example

-   -   Enable closed captioning:     -   InterActual.EnableCCText(1)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.8 InterActual.MenuLanguage(n, rc)

Summary

-   -   Returns the menu language character code for the specified menu         language.

Parameters n Menu language number ranging from 1-30 will be likely, however 1-65535 is the allowable range; signed 2 byte integer rc Character return value; unsigned 2 bytes char represented by the coded “Language Symbols” defined in ISO-639. See the language codes section in the appendix.

Return Value Number Name Description 0 OK Successful execution but code not specified −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid

Example

-   -   Query the language information for menu language 1.     -   MenuLanguage=InterActual.MenuLanguage(1)

Media Supported DVD Video DVD Audio CD Audio X X C.1.9 InterActual.MenuLanguage(1)

Summary

-   -   Selects the language for the Video or Audio Manager Menu         according to the language code (n).

Parameters n Menu language code; shall adhere to ISO-639. See the language codes section in the appendix; Unsigned 2 byte char

Example

-   -   Set the menu language to English, which is “en”.     -   InterActual.SelectMenuLanguage(“en”)

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.10 InterActual.SelectParentalCountry(n)

Summary

-   -   Selects the country for the parental level.

Parameters n Country code to be set according to the Alpha-2 code defined in ISO3166. 2 byte character

Example

-   -   Set the Parental Country Code to United States.     -   InterActual.SelectParentalCountry(“US”)

Notes

-   -   This command is only available in Stop State.

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −6 ParmRangeErr Parameter out of range or invalid C.1.11 InterActual.SelectKaraoke(x)

Summary

-   -   This command changes the audio mode for Karaoke.

Parameters x Signed 1 byte integer; audio mode where x is 1: guide vocal 1 2: guide vocal 2 3: guide melody 1 4: guide melody 2 (if present) 5: sound effect (if present)

Example

-   -   Listen to the guide melody of the current Karaoke disc.     -   InterActual.SelectKaraoke(3)

Media Supported DVD Video DVD Audio CD Audio X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C1.12 InterActual.SetMixVolume(x)

Summary

-   -   This command sets the primary audio stream volume level to         percentage x to allow over-mixing.

Parameters X Percentage for audio stream volume. Signed 1 byte integer ranging from 0-100 Setting x to 0 will mute the main audio.

Example

-   -   Set volume to 50%.

InterActual.SetMixVolume(50) DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.13 InterActual.Close( )

Summary

-   -   Close the driver and stop playback of the current DVD while         playing on a computer.

Parameters

-   -   None required

Example

-   -   Close the driver and stop playback.     -   InterActual.Close( )

Notes

-   -   This is a computer only command. A consumer electronics device         should treat this command as InterActual.Stop( ).

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time C.1.14 InterActual.ShowControls( )

Summary

-   -   Show the video controls while playing an InterActual disc on a         computer.

Parameters

-   -   None required

Example

-   -   Show the controls.     -   InterActual.ShowControls( )

Notes

-   -   This is a computer only command A consumer electronics device         should ignore this command. The coordinate system for both PC         and Macintosh will be defined with top left as 0,0 with x moving         from top left to top right and y moving from top left to bottom         left.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time C1.15 InterActual.HideControls( )

Summary

-   -   Hide the video controls while playing an InterActual disc on a         computer.

Parameters

-   -   None required

Example

-   -   Hide the controls.     -   InterActual.HideControls( )

Notes

-   -   This is a computer only command. A consumer electronics device         should ignore this command. The coordinate system for both PC         and Macintosh will be defined with top left as 0,0 with x moving         from top left to top right and y moving from top left to bottom         left.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time C.1.16 InterActual.ShowContextMenu(mask)

Summary

-   -   Controls the right mouse click context menu that displays on a         computer.

Parameters mask Unsigned 1 byte integer 0x00 Suppress display of context menu 0x01 Play, Pause, Stop 0x02 Fast forward and rewind 0x04 Next chapter, previous chapter 0x08 DVD Menu 0x10 Sub-picture, audio and angle menus 0x20 Full screen menu 0x80 Exit menu

Example

-   -   Show all options in the context menu on a right mouse click     -   InterActual.ShowContextMenu(0xBF)

Notes

-   -   This is a computer only command. A consumer electronics device         should ignore this command.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.17 InterActual.PopUpMenu(n,x,y)

Summary

-   -   Displays and allows the audio languages, sub-pictures, and         angles to be set to those currently available.

Parameters n Signed 1 byte integer 4 = Audio Language 5 = Sub-picture 6 = Angle x X coordinate on computer screen y Y coordinate on computer screen

Example

-   -   Show the pop up menu.     -   InterActual.PopUpMenu( )

Notes

-   -   This is a computer only command. A consumer electronics device         should ignore this command. The coordinate system for both PC         and Macintosh will be defined with top left as 0,0 with x moving         from top left to top right and y moving from top left to bottom         left.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.18 InterActual.SuppressErrors(b)

Summary

-   -   Suppresses display of error messages.

Parameters b Signed 1 byte integer If b = 0, suppress the display of messages If b = 1, display error messages

Example

-   -   Suppress all error messages.     -   InterActual.SuppressErrors(0)

Notes

-   -   This is a computer only command. A consumer electronics device         should ignore this command.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter Out of range or invalid C.1.19 InterActual.AutoMouseHide(b)

Summary

-   -   Show or hide the mouse cursor when the DVD is playing (this is a         toggle control). This method is for computers only.

Parameters b Signed 1 byte integer When b = 0, do not hide mouse When b = 1, automatically hide mouse after 2 seconds

Example

-   -   Automatically hide the mouse after 2 seconds.

InterActual.AutoMouseHide(1)

Notes

-   -   By default, hiding of the mouse cursor occurs 2 seconds after no         activity. This method is for computers only.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −6 ParmRangeErr Parameter out of range or invalid C.1.20 InterActual.OpenDrive( )

Summary

-   -   This command provides control of the media drive to open the         drive, which will eject the media, or close the drive based on         the current state of the drive.

Parameters

-   -   None required

Example

-   -   Eject the media from the drive.     -   InterActual.OpenDrive( )

Notes

-   -   If the device is playing the playback must first be stopped         before the media can be ejected.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time C.1.21 InterActual.Launch(a, p)

Summary

-   -   This command provides the ability to launch an application         co-located on the disc.

Parameters a Application name and fully qualified path derived from the DiscDirectory property; Char string p Parameter list for application; Char string If this string contains a disc filename, the path must be fully qualified.

Example

-   -   Launch the setup application for an extra from the disc.     -   ddir=InterActual.DiscDirectory;     -   InterActual.Launch(ddir+“/EXTRASP”+“setup.exe”, “′”);

Notes

-   -   Macintosh does not support parameter lists.     -   Note: The ability to launch another application from the         JavaScript is both a valuable feature and a potential exposure         to system security. As such, this command must be limited to         launch only files from the disc directory (as derived from the         DiscDirectory property)

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −4 FileNotFound File not found −7 MemoryErr Not enough memory for operation C.1.22 InterActual.PresentationMode(a,m)

Summary

-   -   This command sets the aspect ratio to either wide screen (16:9)         versus full frame (4:3), and the preference for the video         display mode when displaying 16:9 material on a 4:3 display.

Parameters a Aspect ratio of output device; can range from 0-2 where 0: 4:3 device 1: reserved 2: 16:9 signed 1 byte integer m Mode of 16:9; can range from 0-2 where 0: wide 1: pan scan 2: letterbox signed 1 byte integer

Example

-   -   Set the mode to wide screen letterbox     -   InterActual.PresentationMode(2,2)

Notes

-   -   If the mode is not available on the disc, for instance no wide         screen 16:9 content, then this command will return a “−3”, not         supported.

Media Supported DVD Video DVD Audio CD Audio X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C.1.23 InterActual.Print(f)

Summary

-   -   This command provides the ability to print a file.

Parameters f File name with fully qualified path; Char string

Example

-   -   Print the file Screenplay.txt from the disc.         -   ddir=InterActual.DiscDirectory;         -   InterActual.Print(ddir+“/EXTRAS/”+“screenplay.txt”);

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −4 FileNotFound File not found −7 MemoryErr Not enough memory for operation C.1.24 InterActual.PlayPeriodInTitleAutoStop(t,sh,sm,ss,sf,eh,em,es,ef)

Summary

-   -   This command is similar to PlayTimeAutoStop however it supports         the use of frames versus 10 milliseconds (as in hh:mm:ss:ff). It         starts playback in the specified title number (t) at the         specified start time in hours (sh), minutes (sm), seconds (ss)         and frames (sf) and ends at the specified end time (using the         same variables for hours, minutes, seconds and frames: eh, em,         es, ef). For DVD-Audio, the first parameter represents the title         group number (t).

Parameters t DVD-Video: Title number ranging from 1-99 DVD-Audio: Title group number ranging from 1-9 CD-Audio: Track number ranging from 0-99 where    if t = 0 then h, m, s are relative to the    start of the CD-Audio,    else t is the track number and    the h, m, s are relative to that track Signed 1 byte integer sh Start hour where h can range from 00-23; Signed 1 byte integer sm Start minutes where m can range from 00-59; Signed 1 byte integer ss Start seconds where s can range from 00-59; Signed 1 byte integer sf Start frames where x can range from 0-30 to accommodate either 25 or 30 frames per second. Signed 1 byte integer eh End hour where h can range from 00-23; Signed 1 byte integer em End minutes where m can range from 00-59; Signed 1 byte integer es End seconds where s can range from 00-59; Signed 1 byte integer ef End frames where x can range from 0-30 to accommodate either 25 or 30 frames per second. Signed 1 byte integer

Examples

-   -   Start playing from the specified time position of the current         title to the end position. For example to play title 2 from 1         hour, 10 minutes, 30 seconds, frame 7 in the title to frame 20:     -   InterActual.PlayPeriodInTitleAutoStop(2,1,10,30,7,1,10,30,20)

Requires

-   -   DVD-Video: This command requires that the UOP0 operation be         permitted.

Media Supported DVD Video DVD Audio CD Audio X X X

Return Values Number Name Description 0 OK Successful −1 GeneralError Unknown error condition −2 UOPNotAllowed Operation not allowed by current UOP fields −3 NotSupported File type or feature not supported at this time −5 NoDisc Attempt to play with no disc −6 ParmRangeErr Parameter out of range or invalid C2 Properties C.2.1 InterActual.CurrentMenuLanguage

Summary

-   -   Returns the current menu language.

Return Value Char Unsigned 2 byte char as defined in ISO-639. See the language codes section in the appendix.

Example

-   -   Query the current menu language.     -   MyLanguage=InterActual.CurrentMenuLanguage

Media Supported DVD Video DVD Audio CD Audio X X C.2.2 InterActual.TotalNumMenuLangugage

Summary

-   -   Returns the total number of menu languages available.

Return Value JavaScript Number Signed 1 byte integer ranging from 0-99; 0 means none available

Example

-   -   Query the number of menu languages available.     -   NumberMenuLang=InterActual.TotalNumMenuLanguage

Media Supported DVD Video DVD Audio CD Audio X X C.2.3 InterActual.ParentalCountry

Summary

-   -   Returns the current parental country level.

Return Value Char Country code to be set according to the Alpha-2 code defined in ISO3166; unsigned 2 byte character string

Example

-   -   Query the parental country level.     -   PCountry=InterActual.ParentalCountry

Media Supported DVD Video DVD Audio CD Audio X C.2.4 InterActual.CCTextStatus

Summary

-   -   Returns the status of closed captioning.

Return Value JavaScript Number Returns 0 if CC is disabled, or 1 if enable; Signed 1 byte integer

Example

-   -   Get the status of closed captioning:     -   CCstatus=InterActual.CCTextStatus

Media Supported DVD Video DVD Audio CD Audio X X C.2.5 InterActual.CCText

Summary

-   -   Returns the Closed Caption text string from the current Group of         Pictures (GOP).

Return Value Character string Maximum of 256 characters of text

Example

-   -   Get the Closed Caption text:     -   CCstring=InterActual.CCText

Media Supported DVD Video DVD Audio CD Audio X X C.2.6 InterActual.MaxSlow

Summary

-   -   Returns the maximum number of slow speeds supported.

Return Value JavaScript Number Signed 1 byte integer Number of slow speeds ranging from 0-99

Example

-   -   Get the total number of slow speeds supported.     -   x=InterActual.MaxSlow

Notes

-   -   This will return zero (0) if there are no slow speeds supported.

Media Supported DVD Video DVD Audio CD Audio X X C.2.7 InterActual.MaxSlowReverse

Summary

-   -   Returns the maximum number of reverse slow speeds supported.

Return Value JavaScript Number Signed 1 byte integer Number of reverse slow speeds ranging from 0-99

Example

-   -   Get the total number of reverse slow speeds supported.     -   x=InterActual.MaxSlowReverse

Notes

-   -   This will return zero (0) if there are no reverse slow speeds         supported.

Media Supported DVD Video DVD Audio CD Audio X X C.2.8 InterActual.DiscRegion

Summary

-   -   Returns the region code for the DVD.

Return Value JavaScript Number Signed 1 byte integer 0x00 = unknown 0x01 = Region 1 0x02 = Region 2 0x04 = Region 3 0x08 = Region 4 0x10 = Region 5 0x20 = Region 6 0x40 = Reserved 0x80 = Reserved for sign

Example

-   -   Query the region code for the disc. Multi-region discs will have         multiple bits on.     -   regionCode=InterActual.DiscRegion

Media Supported DVD Video DVD Audio CD Audio X C.2.9 InterActual.DiscDirectory

Summary

-   -   Returns the full path name corresponding to the location of the         currently inserted disc's root directory (computer only). Hence,         for a PC, we would expect “D:f” in most cases if the DVD-ROM is         on drive D.

Return Value Character string Character string containing pathname using “/” for directory separators on all platforms; maximum of 256 (computer only)

Example

-   -   Query for the current drive/path that contains the disc:     -   discPath=InterActual.DiscDirectory

Notes

-   -   Some platforms may be case sensitive in the file and directory         names. If this property is parsed and manipulated, the         programmer should adhere to the specific platform standards.

Media Supported DVD Video DVD Audio CD Audio X X X C.2.10 InterActual.DiscDirectory

Summary

-   -   Returns full path of the location corresponding to the local         InterActual player (computer only). On a PC, we would expect to         see “C:/Program Files/InterActual/InterActual Playerf” if it is         installed on drive C.

Return Value Character Character string containing pathname using “/” for directory string separators on all platforms; maximum of 256 (computer only) This will be NULL (“”) if there is no computer application.

Example

-   -   Query for the local directory information:     -   installedPath=InterActual.LocalDirectory

Notes

-   -   This value will be NULL if there is no computer application and         only an InterActual object embedded within a web page.     -   Some platforms may be case sensitive in the file and directory         names. If this property is parsed and manipulated, the         programmer should adhere to the specific platform standards.

Media Supported DVD Video DVD Audio CD Audio X X X C.2.11 InterActual.CurrentZoomX

Summary

-   -   Returns the current zoom x value

Return Value JavaScript Number Value of x for zoom; unsigned 4 byte (32-bit) value

Example

-   -   Get the x value for the current zoom.     -   x=InterActual.CurrentZoomX

Media Supported DVD Video DVD Audio CD Audio X X C.2.12 InterActual.CurrentZoomY

Summary

-   -   Returns the current zoom y value

Return Value JavaScript Number Value of y for zoom; unsigned 4 byte (32-bit) value

Example

-   -   Get the y value for the current zoom.     -   y=InterActual.CurrentZoomY

Media Supported DVD Video DVD Audio CD Audio X X C.2.13 InterActual.CurrentPanX

Summary

-   -   Returns the current Pan x value.

Return Value JavaScript Number Value of x for pan; unsigned 4 byte (32-bit) value

Example

-   -   Get the x value for the current pan.     -   x=InterActual.CurrentPanX

Media Supported DVD Video DVD Audio CD Audio X X C.2.14 InterActual.CurrentPanY

Summary

-   -   Returns the current Pan y value.

Return Value JavaScript Number Value of y for pan; unsigned 4 byte (32-bit) value

Example

-   -   Get the y value for the current pan.     -   y=InterActual.CurrentPanY

Media Supported DVD Video DVD Audio CD Audio X X C.2.15 InterActual.MixVolume

Summary

-   -   Returns the current primary audio stream volume level as a         percentage of full volume.

Return Value JavaScript Number Percentage for audio stream volume. Signed 1 byte integer ranging from 0-100

Example

-   -   Get the current mix volume level.     -   MixVolume_percentage=InterActual.MixVolume

Media Supported DVD Video DVD Audio CD Audio X X X C.2.16 InterActual.FramesPerSecond

Summary

-   -   Returns the video frame rate for the current DVD title         correlating to NTSC/SECAM or PAL television frame rates.

Return Value JavaScript Number 25: frames per second (NTSC/SECAM) 30: frames per second (PAL) Signed 1 byte integer

Example

-   -   Get the current frames per seconds setting.     -   TV_TYPE=InterActual.FramesPerSecond

Media Supported DVD Video DVD Audio CD Audio X X X C.3 Events

Sample private advanced event functions

C.3.1 Mouse Event

Summary

-   -   Called when the user clicks either the left or right mouse         button based on the video coordinates.     -   Returns mouse button number and coordinates.

Return parameters mouseButton Button, 0 = left mouse button, 1 = right mouse button x X coordinate of click, signed 2 byte integer ranging from 0-719 y Y coordinate of click, signed 2 byte integer ranging from 0-479 or 575 depending on NTSC versus PAL

Example

Trigger an event when user clicks the mouse: <SCRIPT LANGUAGE=“JavaScript”> function MouseEvent(mouseButton, x, y)  if (mouseButton == 0){    // Trigger event based on left mouse click  } </SCRIPT>

Notes

-   -   The coordinate system for both PC and Macintosh will be defined         with top left as 0,0 with x moving from top left to top right         and y moving from top left to bottom left.

Media Supported DVD Video DVD Audio CD Audio X X X C.3.2 Menu Button Event

Summary

-   -   Called when a button is highlighted. Returns the button number.

Return parameters menuButton Button number, signed 1 byte integer ranging from 1-36

Example

Trigger an event based on button event. <SCRIPT LANGUAGE=“JavaScript”> function MenuButtonEvent(menuButton)  if (menuButton == 1){    // Trigger event based on button highlight  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X C.3.3 Karaoke Event

Summary

-   -   Called when a Karaoke event changes.

Return parameters karaokeNum Karaoke event, where it will return a signed 1 byte integer as follows 1: if karaoke track has begun playing 0: if just finished

Example

Set the KaraokeEvent and test when it triggers: <SCRIPT LANGUAGE=“JavaScript”> function KaraokeEvent(karaokeNum)  if (karaokeNum == 1){    // do stuff while it is playing.....  } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X C.3.4 Still Event

Summary

-   -   Called when Still state changes, e.g. when change of state from         StillOn to StillOff or vice versa.

Return parameters state New state, signed 1 byte integer ranging from 0-1 0: StillOff now 1: StillOn now

Example

Trigger an event when Still state changes: <SCRIPT LANGUAGE=“JavaScript”> function StillEvent(state)   if (state == 1)  {     // Do something while still is up on screen   } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X C.3.5 CC Text Event

Summary

-   -   Called when the CC text changes for a new GOP.

Return parameters

-   -   None

Example

Trigger an event when the CC Text changes: <SCRIPT LANGUAGE=“JavaScript”> function CCTextEvent() current = InterActual.CCText if (current.length) {   // Display CC text somewhere } </SCRIPT>

Media Supported DVD Video DVD Audio CD Audio X X C.3.6 FullScreen Event (PC only)

Summary

-   -   Called when video transitions from full screen to windowed mode         and vice versa

Return parameters transition 1: video playback transitions from window to full screen mode 0: video playback transitions from full screen to window mode Signed 1 byte integer

Notes

-   -   This event is also thrown when playback is stopped (returning a         ”0”). It is expected that the event monitor code will call         HideControls( ) upon receiving a return of “0” and will call         ShowControls( ) upon receiving a return of “1”.

Example

Trigger an event when changing from full screen video to windowed mode: <SCRIPT LANGUAGE=“JavaScript”> function FS2Win(t)  if (t == 0) {     // Trigger here  } </SCRIPT>

Media supported DVD Video DVD Audio CD Audio X 

1. An information storage medium on which video data are recorded, comprising: a plurality of clips that are recording units in which the video data are stored; and text data for subtitles which are recorded separately from the plurality of clips and overlappable with an image according to the video data and then outputtable, the text data including data for providing subtitles in at least one language.
 2. The information storage medium of claim 1, further comprising character font data, which are recorded separately from the plurality of clips, for graphic expression of the text data and which are usable in the text data.
 3. The information storage medium of claim 1, wherein, when the text data is of multiple languages, the text data are recorded in separate spaces for each of the multiple languages.
 4. The information storage medium of claim 1, wherein the text data includes character data which are convertible into graphic data and output synchronization information for synchronizing the graphic data with the video data.
 5. The information storage medium of claim 1, wherein the text data includes character data which are convertible into graphic data and output location information indicating a location in which the graphic data is to be displayed when the graphic data is overlapped with an image according to the video data.
 6. The information storage medium of claim 1, wherein the text data includes character data which are convertible into graphic data and information for expressing the output of the graphic data in a plurality of sizes when the graphic data is overlapped with an image.
 7. The information storage medium of claim 1, wherein the video data are divided into units that are continuously reproducible, and a size of all of the text data corresponding to one unit is limited.
 8. The information storage medium of claim 1, wherein the video data is divided into a plurality of units that are continuously reproducible, the text data corresponding to each reproducing unit being divided into a plurality of language sets, and a size of all of the text data forming one language set being limited.
 9. The information storage medium of claim 1, wherein the data forming the text data are expressed and recorded in Unicode for supporting multi-language character sets.
 10. The information storage medium of claim 9, wherein, when the text data for subtitles are formed only with characters of one of ASCII, which is a basic English character set, and IS08859-1, which is a Latin-extended character set, the text data being coded and recorded by using UTF-8 by which one character is coded into a plurality of 8-bit units.
 11. The information storage medium of claim 9, wherein, when the text data includes a character having a code point value of a 2-byte size in Unicode, the text data being coded and recorded by using UFT-16 by which one character is coded into a plurality of 16-bit units.
 12. The information storage medium of claim 1, wherein the information storage medium is a removable type.
 13. The information storage medium of claim 12, wherein the information storage medium is an optical disc which is readable by an optical apparatus of the reproducing apparatus.
 14. A reproducing apparatus which reproduces data from an information storage medium on which video data is recoded, the video data being coded and divided into clips that are recording units and recorded in a plurality of clips and on which text data for subtitles that are formed with data of a plurality of languages and are overlappable as graphic data with an image based on the video data, the text data being recorded separately from the clips, the reproducing apparatus comprising: a data reproducing unit which reads data from the information storage medium; a decoder which decodes the coded video data; a renderer which converts the text data into graphic data; a blender which overlays the graphic data with the video data to generate an image; a first buffer which temporarily stores the video data; and a second buffer which stores the text data.
 15. The reproducing apparatus of claim 14, wherein font data are stored in a third buffer and are usable in the text data for graphic expression of the text data and are recorded separately from the clips on the information storage medium, and the renderer converts the text data into graphic data using the font data.
 16. The reproducing apparatus of claim 14, wherein, when the text data are data of multiple languages, the text data are recorded in separate spaces for each of the languages, wherein text data for a language that is one of selected by a user and set as an initial reproducing language s are temporarily stored in the second buffer, wherein font data for converting the text data into graphic data are temporarily stored in the third buffer, and wherein, simultaneously, while reproducing video data, the text data is converted into graphic data and the graphic data is output.
 17. The reproducing apparatus of claim 14, further comprising a controller which controls an output start time and end time of the text data using synchronization information, wherein on the information storage medium are recorded the text data which includes the synchronization information, by which the text data are converted into graphic data which are overlapped with an image based on the video data.
 18. The reproducing apparatus of claim 14, further comprising a controller which controls a location where the text data is overlapped with an image based on the video data using output location information, wherein on the information storage medium are recorded the text data includes character data which are convertible into graphic data, and the output location information indicating a location where the graphic data is to be output when the graphic data is overlapped with an image based on the video data.
 19. The reproducing apparatus of claim 16, wherein the video data recorded on the information storage medium are divided into units that are continuously reproducible, and within a limited size of all of the text data corresponding to the recording unit, the text data are recorded, wherein all of the text data whose size is limited is stored in the second buffer before reproducing the continuously reproducible units, and when a language change occurs during reproduction, subtitle data corresponding to the language stored in the buffer is output.
 20. The reproducing apparatus of claim 16, wherein the video data is divided into units that are continuously reproducible, the text data corresponding to one unit are divided into a plurality of language sets, the text data for subtitles forming the one language set are recorded so that all of the text data is limited, wherein the text data corresponding to a language set containing the subtitle data which are output simultaneously with video data, are stored in the buffer before reproducing the unit that is continuously reproducible, and when a language change occurs during reproduction, when the text data for the language are in the buffer, the text data for the language are output, and when the text data for the language are not in the buffer, the text data corresponding to the language set containing the text data for the language are stored in the buffer and the text data for the language are output.
 21. The reproducing apparatus of claim 14, further comprising a subtitle size selector which selects a size of the subtitle data based on a user input, wherein the text data includes character data, which are convertible into graphic data, and information indicating the output of a plurality of graphic data items when the graphic data is overlapped with an image based on the video data are recorded on the information storage medium.
 22. The reproducing apparatus of claim 14, wherein on the information storage medium, data forming the text data is expressed and recorded in Unicode for supporting multi-language sets, and the renderer converts the characters expressed in Unicode into graphic data.
 23. The reproducing apparatus of claim 22, wherein on the information storage medium, when the text data for subtitles are formed only with characters of one of ASCII, which is a basic English character set, and IS08859-1, which is a Latin-extended character set, the text data being coded and recorded by using UTF-8 by which one character is coded into a plurality of 8-bit units, and the renderer converts the characters expressed by UFT-8 into graphic data.
 24. The reproducing apparatus of claim 22, wherein on the information storage medium, when the text data includes a character having a code point value of a 2-byte size in Unicode, the text data are coded and recorded by using UFT-16 by which one character is coded into a plurality of 16-bit units, and the renderer converts the characters expressed by UTF-16 into graphic data.
 25. The reproducing apparatus of claim 14, wherein the information storage medium is a removable type, and the reproducing apparatus reads data from and reproduces data on the removable information storage medium.
 26. The reproducing apparatus of claim 25, wherein the information storage medium is an optical disc which is readable by an optical apparatus of the reproducing apparatus, and the reproducing apparatus reads and reproduces data recorded on the optical disc.
 27. The reproducing apparatus of claim 14, wherein the reproducing apparatus outputs the graphic data without reproducing video data recorded on the information storage medium.
 28. The reproducing apparatus of claim 27, wherein the subtitle data further comprises subtitle data for one or more languages, the renderer converts text data for the one or more languages into graphic data.
 29. The reproducing apparatus of claim 27, wherein the subtitle data are synchronously overlapped with a video image and then output.
 30. A recording apparatus which records video data on an information storage medium, comprising: a data writer which writes data on the information storage medium; an encoder which codes video data; a subtitle generator which generates subtitle data addable to the video data; a central processing unit (CPU); a fixed-type storage; and a buffer, wherein the video data is stored in the fixed-type storage after the encoder divides video images into clips that are recording units and compression encodes the clips, wherein the subtitle generator generates subtitle data for a plurality of languages in the form of a text, the subtitle data being reproducible together with an image based on the video data and stored in the fixed-type storage, wherein the buffer temporarily stores the data stored in the fixed-type storage, wherein the data writer records the coded video data and subtitle data that are temporarily stored in the buffer on the information storage medium, and wherein the CPU controls encoding of the video data, recording the coded video data and the subtitle data in respective separate areas on the information storage medium.
 31. The recording apparatus of claim 30, further comprising a font data generator which generates font data for converting text data for subtitles into graphic data, wherein the font data generator generates font data needed for converting the subtitle data into graphic data, and stores the font data in the fixed-type storage, the buffer temporarily stores the font data stored in the fixed-type storage, the data writer records the font data temporarily stored in the fixed-type storage on the information storage medium, and the CPU controls the generating of the font data and recording the font data in separate areas of the information storage medium.
 32. The recording apparatus of claim 30, wherein, when the text data are data of multiple languages, the CPU controls the subtitle data so that the subtitle data are recorded in a separate space for each language.
 33. The recording apparatus of claim 30, wherein the subtitle generator generates the subtitle data by including character data which are convertible into graphic data and then output and output synchronization information for synchronizing with reproduction of the video images.
 34. The recording apparatus of claim 30, wherein the subtitle generator generates the subtitle data by including character data which are convertible into graphic data and output location information indicating a location where the graphic data will be output when the graphic data is overlapped with an image based on the video data.
 35. The recording apparatus of claim 30, wherein the subtitle generator generates the text data by including character data which is convertible into graphic data and information for expressing the output of the graphic data with a plurality of sizes when the graphic data is overlapped with an image based on the video data.
 36. The recording apparatus of claim 30, wherein the coded video data is divided into recording units that are continuously reproducible, and the subtitle generator generates the text data so that a size of all of the subtitle data corresponding to the recording unit is limited.
 37. The recording apparatus of claim 30, wherein the coded video data is divided into recording units that are continuously reproducible, and after the text data corresponding to the recording unit are divided into a plurality of language sets, the subtitle generator generates the text data so that a size of the entire subtitle data forming the one language set is limited.
 38. The recording apparatus of claim 30, wherein the subtitle generator generates data forming the text data in Unicode for supporting multi-language character sets.
 39. The recording apparatus of claim 37, wherein the subtitle generator encodes by using UTF-8 by which one character is coded into a plurality of 8-bit units when the text data are formed only with characters of one of ASCII, which is a basic English character set, and IS08859-1, which is a Latin-extended character set.
 40. The recording apparatus of claim 37, wherein the subtitle generator encodes by using UFT-16 by which one character is coded into a plurality of 16-bit units when the text data includes a character having a code point value of a 2-byte size in Unicode.
 41. The recording apparatus of claim 30, wherein the information storage medium is a removable type.
 42. The recording apparatus of claim 41, wherein the information storage medium is an optical disc.
 43. A method of reproducing data stored on an information storage medium, comprising: reading audio-visual (AV) data and text data; rendering subtitle image data from the text data; decoding the AV data and outputting decoded AV data; and blending the subtitle image data and the decoded AV data.
 44. The method of claim 43, further comprising synchronizing the subtitle image data with the video information using synchronization information included in the decoded AV data.
 45. The method of claim 43, wherein the text data includes display area information, display style box information, and information indicating a language.
 46. The method of claim 45, wherein the display area information designates a location on which rendered subtitle image data are displayed on a screen.
 47. The method of claim 45, wherein the display style box information contains information regarding at lest one of a size of displayed characters, a writing of rendered subtitle image data in horizontal lines and/or vertical lines, an arrangement, colors, and a contrast in the display area.
 48. The method of claim 43, further comprising loading the subtitle data into a buffer.
 49. The reproduction apparatus of claim 43, wherein the AV data, the text data, and the font data are stored in an information storage medium readable by the reading section.
 50. The reproduction apparatus of claim 43, wherein the blending yields a video image having subtitles displayed thereon.
 51. A reproducing apparatus comprising: a reading section which reads audio-visual (AV) data, text data, and font data; a decoder section which decodes the AV data and outputs moving picture data; a rendering section which renders subtitle image data from the text data; and a blending section which synthesizes the moving picture data with the subtitle image data.
 52. The reproduction apparatus of claim 51, further comprising a buffer section which buffers data between the reading section and the decoding and rendering sections.
 53. The reproduction apparatus of claim 51, wherein the AV data, the text data, and the font data are stored in an information storage medium readable by the reading section.
 54. The reproduction apparatus of claim 51, wherein at least one of the text data and the font data are stored in a downloadable database.
 55. The reproduction apparatus of claim 51, wherein the AV data is stored in an information storage medium readable by the reading section.
 56. The reproduction apparatus of claim 51, wherein the rendering section finds a font matching a character code of each character in the text data, the fonts being stored in one of a downloadable database and in a storage section of the apparatus.
 57. The reproduction apparatus of claim 51, wherein the text file includes data for each of one or more languages and the text data contains information indicating one of the one or more languages.
 58. The reproduction apparatus of claim 51, wherein, when the text file includes data for each of one or more languages, the text data is one of stored as multiplexed data in an area and stored in separate areas for each of the one or more languages.
 59. A reproducing apparatus comprising: a reading section which reads text data and font data; a rendering section which renders subtitle image data from the text data; an outputting section which outputs the subtitle image data; and an input receiving section which receives an input to subtitle data for a next line so as to control the output time of the subtitle data.
 60. The apparatus of claim 59, wherein the text data and the font data are for a plurality of languages, the subtitle information includes synchronization information for each of the plural languages, and subtitle data two or more of the plurality of languages are output at the same time.
 61. A data recording and/or reproducing apparatus comprising: a storage section; an encoder which codes audio-visual (AV) data to yield coded AV data; a subtitle generator which generates renderable text data for subtitles; a data writer which writes the coded AV data and the renderable text data onto the storage section; a reading section which reads the coded AV data and the rederable text data; a decoder section which decodes the coded AV data so as to yield moving picture data; a rendering section which renders subtitle image data from the renderable text data; and a blending section which synthesizes the moving picture data with the subtitle image data so as to yield blended moving picture data. 